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• New Computer Build Questions

  - by MJ

  I'm in the process of gathering parts and specs for a new machine. I wear many hats, so the machine needs to do a lot. I need at least 2 monitor support, if not three. I also play many online MMOs (wow, aion, war hammer, etc), along with some freelance programming projects. I already have a case which is very large, so it will fit anything. I have 2 other SATA HDs. They are more for storage and basic programs. I feel that the best improvement could be done with a solid state HD, true or not? I'm more of a software/programming guy, so ANY input at all on improving this system build would be appreciated. I have a few questions with this list. AMD or Intel? I don't know enough about either to choose what would best fit me. Thanks! **EDIT: Thanks for the input everyone! Here are some answers: I do a lot of programming and gaming, so I do need things for both. The newer video card covers the gaming aspect, as well as allowing me to have many monitors. (hopefully upgrade to dual 30' or more) I don't need any additional HDs at this time. I have a SATA 160g and 120g from my previous computer, and a NAS system with over 2TB of storage on the homenetwork. I just wanted a fast HD for OS/programs/games. With the memory. I have used G.SKILL before in 2 system builds. It's done excellent for me in them. Very stable. **EDIT2: Made some additional changes. Lowered the power supply down to 750, which saves me more $$. Also changed the SSD to 2 WD 650G HDs. Thinking of doing a CPU upgrade to the 3.4GHZ AMD Phenom II X4 965 Black Edition Deneb 3.4GHz System Specs - Budget:$1500 CPU: AMD Phenom II X4 955 Black Edition Deneb 3.2GHz MB: GIGABYTE GA-MA790GPT-UD3H AM3 AMD 790GX HDMI ATX Memory: G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 1066 Video: DIAMOND 5870PE51G Radeon HD 5870 (Cypress XT) 1GB 256-bit GD Power Supply: XCLIO GREATPOWER 1000W ATX12V SLI Ready CrossFire Ready HD:Intel X25-M Mainstream SSDSA2MH080G2C1 2.5" 80GB SATA II MLC Changes: Power Supply: CORSAIR CMPSU-750TX 750W ATX12V / EPS12V HD: 2x Western Digital Caviar Blue WD6400AAKS 640GB CPU: AMD Phenom II X4 965 Black Edition Deneb 3.4GHz

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• Can't install new database in OpenLDAP 2.4 with BDB on Debian

  - by Timothy High

  I'm trying to install an openldap server (slapd) on a Debian EC2 instance. I have followed all the instructions I can find, and am using the recommended slapd-config approach to configuration. It all seems to be just fine, except that for some reason it can't create my new database. ldap.conf.bak (renamed to ensure it's not being used): ########## # Basics # ########## include /etc/ldap/schema/core.schema include /etc/ldap/schema/cosine.schema include /etc/ldap/schema/nis.schema include /etc/ldap/schema/inetorgperson.schema pidfile /var/run/slapd/slapd.pid argsfile /var/run/slapd/slapd.args loglevel none modulepath /usr/lib/ldap # modulepath /usr/local/libexec/openldap moduleload back_bdb.la database config #rootdn "cn=admin,cn=config" rootpw secret database bdb suffix "dc=example,dc=com" rootdn "cn=manager,dc=example,dc=com" rootpw secret directory /usr/local/var/openldap-data ######## # ACLs # ######## access to attrs=userPassword by anonymous auth by self write by * none access to * by self write by * none When I run slaptest on it, it complains that it couldn't find the id2entry.bdb file: root@server:/etc/ldap# slaptest -f ldap.conf.bak -F slapd.d bdb_db_open: database "dc=example,dc=com": db_open(/usr/local/var/openldap-data/id2entry.bdb) failed: No such file or directory (2). backend_startup_one (type=bdb, suffix="dc=example,dc=com"): bi_db_open failed! (2) slap_startup failed (test would succeed using the -u switch) Using the -u switch it works, of course. But that merely creates the configuration. It doesn't resolve the underlying problem: root@server:/etc/ldap# slaptest -f ldap.conf.bak -F slapd.d -u config file testing succeeded Looking in the database directory, the basic files are there (with right ownership, after a manual chown), but the dbd file wasn't created: root@server:/etc/ldap# ls -al /usr/local/var/openldap-data total 4328 drwxr-sr-x 2 openldap openldap 4096 Mar 1 15:23 . drwxr-sr-x 4 root staff 4096 Mar 1 13:50 .. -rw-r--r-- 1 openldap openldap 3080 Mar 1 14:35 DB_CONFIG -rw------- 1 openldap openldap 24576 Mar 1 15:23 __db.001 -rw------- 1 openldap openldap 843776 Mar 1 15:23 __db.002 -rw------- 1 openldap openldap 2629632 Mar 1 15:23 __db.003 -rw------- 1 openldap openldap 655360 Mar 1 14:35 __db.004 -rw------- 1 openldap openldap 4431872 Mar 1 15:23 __db.005 -rw------- 1 openldap openldap 32768 Mar 1 15:23 __db.006 -rw-r--r-- 1 openldap openldap 2048 Mar 1 15:23 alock (note that, because I'm doing this as root, I had to also change ownership of some of the files created by slaptest) Finally, I can start the slapd service, but it dies in the attempt (text from syslog): Mar 1 15:06:23 server slapd[21160]: @(#) $OpenLDAP: slapd 2.4.23 (Jun 15 2011 13:31:57) $#012#011@incagijs:/home/thijs/debian/p-u/openldap-2.4.23/debian/build/servers/slapd Mar 1 15:06:23 server slapd[21160]: config error processing olcDatabase={1}bdb,cn=config: Mar 1 15:06:23 server slapd[21160]: slapd stopped. Mar 1 15:06:23 server slapd[21160]: connections_destroy: nothing to destroy. I manually checked the olcDatabase={1}bdb file, and it looks fine to my amateur eye. All my specific configs are there. Unfortunately, syslog isn't reporting a specific error in this case (if it were a file permission error, it would say). I've tried uninstalling and reinstalling slapd, changing permissions, Googling my wits out, but I'm tapped out. Any OpenLDAP genius out there would be greatly appreciated!

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• SSH into Fedora 17 will not work with new users

  - by psion

  I just deployed a new Fedora 17 server on the Amazon EC2. I was able to log in as ec2-user with my generated keypair, but I cannot log in under normal circumstances as a user I created. This is just a normal ssh: ssh user@ip-address Any ideas on what is going on here? EDIT: This is a snippit from my sshd_config file # To disable tunneled clear text passwords, change to no here! PasswordAuthentication no #PermitEmptyPasswords no PasswordAuthentication no EDIT AGAIN: This is the output of ssh -v. OpenSSH_5.8p2, OpenSSL 1.0.0i-fips 19 Apr 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to 107.23.2.165 [107.23.2.165] port 22. debug1: Connection established. debug1: identity file /home/psion/.ssh/id_rsa type 1 debug1: identity file /home/psion/.ssh/id_rsa-cert type -1 debug1: identity file /home/psion/.ssh/id_dsa type 2 debug1: identity file /home/psion/.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9 debug1: match: OpenSSH_5.9 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.8 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA 19:cb:84:21:a9:0e:83:96:2f:6a:fa:7d:ce:39:0f:31 debug1: Host '107.23.2.165' is known and matches the RSA host key. debug1: Found key in /home/psion/.ssh/known_hosts:5 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic debug1: Next authentication method: gssapi-keyex debug1: No valid Key exchange context debug1: Next authentication method: gssapi-with-mic debug1: Unspecified GSS failure. Minor code may provide more information Credentials cache file '/tmp/krb5cc_1000' not found debug1: Unspecified GSS failure. Minor code may provide more information Credentials cache file '/tmp/krb5cc_1000' not found debug1: Unspecified GSS failure. Minor code may provide more information debug1: Unspecified GSS failure. Minor code may provide more information debug1: Next authentication method: publickey debug1: Offering DSA public key: /home/psion/.ssh/id_dsa debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic debug1: Offering RSA public key: /home/psion/.ssh/id_rsa debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic debug1: No more authentication methods to try. Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

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• Windows 7 x64 installation freezes on new PC build

  - by jhsowter

  Symptoms While attempting to install Windows 7 (64 bit) on my new PC build, it freezes usually at the point where it is expanding the windows image, but has frozen as early as accepting the licence agreement, and as late as just after the first restart. My specs are at the bottom of the post. So far I have tried the following to identify the problem, in rough chronological order: Tried different hard drives with different sata cables. Same symptoms. I later used a different computer to install windows on the same hard drive with no problems. Tried the RAM in different slots, and tried one RAM stick instead of two. Same symptoms. Updated the BIOS to 1.60. Same symptoms. Ran Memtest86+ with RAM in dual channel. It passed about 6 times when I left it running overnight. Used USB to install windows instead of an optical drive. Same symptoms. Change SATA configuration from AHCI to IDE. Same symptoms. Tried various different SATA ports. Same symptoms. Updated BIOS to 1.70. Same symptoms. I saw the RAM did not list my motherboard as being supported even though the motherboard did list the RAM as being supported. So I tried some Kingston DDR3 1333MHz RAM instead. Same symptoms. Other (possibly) pertinent information My CPU idles at about 30 °C. I can't tell what it gets to when it's working. When I installed the CPU, the lever which locks the CPU in place took quite a bit of force to pull down. Now I didn't just yank it down without rechecking the CPU was seated properly about 5 times, but it does seems unusual, and I wonder if the CPU was seated badly if I would see these symptoms? I am out of ideas and don't know how to diagnose any further. I suppose either the motherboard or CPU must be the problem. I am on the verge of taking it to a specialist. The Question How should I proceed from here? Is there anything I can rule out as being the source of the symptoms I am seeing? My Specs CPU: Intel i5 3570k RAM: G.Skill RipjawsX 8GB kit HDD: single 3.5" 500GB SATA or 160GB 2.5" SATA (at different times and sometime together. But no RAID or anything). MB: ASRock Extreme4 Z77 PSU: Silverstone Strider Plus 600W ST60F-P

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• How to move a ruby on rails application to a new server

  - by ManiacZX

  I have a rails app on an old Ubuntu server I need to move onto a new machine. I haven't worked with ruby on rails so I don't really know anything about the structure of the app. I want to load this onto an Ubuntu 8.04 AMI on Amazon EC2 and am looking for any information regarding the migration process such as: Do I copy over the entire folder defined as the application root in the mongrel config (for ex: /u/apps/myapp/current) or just certain folders? Am I looking for trouble if I go with the latest versions of ruby and the various gems? Any general gotchas to look out for in the process. Current server information: root@webnode001:/# cat /proc/version Linux version 2.6.15-27-server (buildd@terranova) (gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)) #1 SMP Fri Dec 8 18:43:54 UTC 2006 root@webnode001:/# rails -v Rails 1.2.3 root@webnode001:/# mongrel_rails cluster::configure --version Version 1.0.1 root@webnode001:/# gem -v 0.9.0 root@webnode001:/# gem list -l *** LOCAL GEMS *** actionmailer (1.3.3, 1.2.5) Service layer for easy email delivery and testing. actionpack (1.13.3, 1.12.5) Web-flow and rendering framework putting the VC in MVC. actionwebservice (1.2.3, 1.1.6) Web service support for Action Pack. activerecord (1.15.3, 1.15.2, 1.14.4) Implements the ActiveRecord pattern for ORM. activesupport (1.4.2, 1.4.1, 1.3.1) Support and utility classes used by the Rails framework. cgi_multipart_eof_fix (2.1) Fix an exploitable bug in CGI multipart parsing which affects Ruby <= 1.8.5 when multipart boundary attribute contains a non-halting regular expression string. daemons (1.0.7, 1.0.5, 1.0.4, 1.0.2) A toolkit to create and control daemons in different ways eventmachine (0.7.2, 0.7.0) Ruby/EventMachine socket engine library fastercsv (1.2.0, 1.1.0) FasterCSV is CSV, but faster, smaller, and cleaner. fastthread (1.0) Optimized replacement for thread.rb primitives ferret (0.11.4) Ruby indexing library. gem_plugin (0.2.2, 0.2.1) A plugin system based only on rubygems that uses dependencies only mongrel (1.0.1, 0.3.13.4) A small fast HTTP library and server that runs Rails, Camping, Nitro and Iowa apps. mongrel_cluster (0.2.1) Mongrel plugin that provides commands and Capistrano tasks for managing multiple Mongrel processes. mysql (2.7) MySQL/Ruby provides the same functions for Ruby programs that the MySQL C API provides for C programs. piston (1.3.3) Piston is a utility that enables merge tracking of remote repositories. rails (1.2.3, 1.1.6) Web-application framework with template engine, control-flow layer, and ORM. rake (0.7.3, 0.7.1) Ruby based make-like utility. sources (0.0.1) This package provides download sources for remote gem installation swiftiply (0.5.1) A fast clustering proxy for web applications.

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• Looking for a new backup solution to replace dying tape drive

  - by E3 Group

  We're running Windows Server 2003 SBS and another machine with Server 2003 Standard on it. The SBS server is about 7 years old running pretty much 24/7 - a HP server of some description. We have an Ultrium 448 cycling LTO2 400GB tapes daily and incrementally backing up approximately 100gb worth of data (20gb C:\ and system state, 40gb exchange, 40gb database for some crap marketing software) on BackupExec 10D. As of 5 months ago, the backups have been consistently failing with IO errors, bad reads and some write errors. When I say consistent, I mean every time and we haven't had a proper backup for the entire 5 months - So if the server explodes tomorrow, 7 years worth of data will just cease to exist. I've only just recently rejoined the company and am looking at rectifying the more concerning problems, so the first thing I did was try a backup to an USB2.0 external drive. It was excruciatingly slow. In fact it was so slow it took 40 hours and it still wasn't finished. I ended up cancelling it and reconfiguring the selections again to reduce file size. This, however, isn't a permanent solution. I concluded that the IO error was either from a faulty tape drive (which has a tape stuck in there right now and not coming out) or from a dying SCSI controller. Neither of them are good news and both are extremely expensive to fix. I'm operating on an extremely low budget so have been looking at outsourcing the backups. A company in Sydney (where I'm located) offer incremental online backups via a NAS. It costs almost double a new tape drive but offers monthly repayments which will let us get through times when cash flow is minimal. It seems like a sweet deal but it is still a little bit pricey. So I'm looking for a cheaper, yet reliable solution. Maybe some in-house NAS or something offsite? The idea is to avoid using tapes. Are there any recommendations for rectifying my current situation? Or are tapes the only way to go? I'm concerned that the server will die one day in the near future and I must be able to restore it to another server with different hardware.

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• Hard freeze on new computer

  - by mphair

  OCZ Gold 3x2GB 240-Pin DDR3 SDRAM PC312800 Palit NE5T240SFHD01 GeForce GT240 1GB 128-bit GDDR5 ASUS P7P55D-E LGA 1156 P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard Intel Core i7-860 Lynnfield 2.8GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor SAMSUNG 22X Optical drive (DVD+-R/RW) CORSAIR CMPSU-620HX 620W ATX12V V2.2 Windows 7 Ultimate x64 Brand new system (got it from newegg two days ago) and it booted up and installed windows and ran for a day just fine. Yesterday, I boot it up in the afternoon and run various games at full graphics for most of the day. I turn on WoW and play for a few hours and it hard stalls. No numlock switching, no mouse feedback but nothing going wrong on the screen. No BSOD. I wait a bit to see if the stall is just a temporary one, but then force shutdown the computer. Upon reboot, everything seems fine, windows sees that it didn't shut down properly but I go into normal boot and restart WoW. I'm able to load it up and start running around when it freezes again. This time when I restart, it doesn't even get to BIOS. It starts (power goes on) and it just hangs with no output to the monitors. I shut it off and went to bed. This morning, I turned it on and went into BIOS setup. I'm not terribly experienced with messing with BIOS settings but I checked over them the best I could. Everything seems fine so I boot into windows and browse the internet for a bit looking for a solution, hard freeze within 10 minutes. I restart and go into BIOS and check the CPU temperature, 40c. I'm kinda stumped here. Some people say it might be a memory issue, but why would it take so long for it to come up? Could it have been slowly accessing one memory stick at a time and then it just got to a bad one and that's what is causing it to fail? It seems odd that I don't get a BSOD from a hardware failure. Having the screen just halt with no input or output change seems like a software thing to me. Any thoughts?

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• Repair BAD Sectors or Buy a new HDD?

  - by Nehal J. Wani

  I have a Seagate internal hard disk drive. I recently opened up my laptop [Dell Inspiron N5010] [Warranty has expired], cleaned it and it worked normally after waking up from hibernation. However, when I restarted it, it stuck on windows loading screen, then tried to boot from Dell recovery partition but failed. It gave the error: Windows has encounter a problem communicating with a device connected to your computer. This error can be caused by unplugging a removable storage device such as an external USB drive while the device is in use, or by faulty hardware such as a hard drive or CD-ROM drive that is failing. Make sure any removable storage is properly connected and then restart your computer If you continue to receive this error message, contact the hardware manufacturer. Status: 0xc00000e9 Info: An unexpected I/O error has occurred. While cleaning, I had mistakenly touched the round silvery thing at the bottom of the HDD. I don't know whether this has caused the problem or not. Since I have Fedora also installed in the same HDD, I can boot from it but it shows weird read errors when I ask it to mount Windows partitions. The disk utility also says that the Hard Disk has many bad sectors and needs to be replaced. I downloaded Seatools from Seagate website and used it. In the long test, I gave it permission to repair the first 100 errors which it did successfully. Now I am confused at what I should do. Internal Hard Disk Costs: a. Internal HDD 500GB Costs: Rs3518 b.1 External HDD 500GB Costs: Rs3472 b.2 External HDD 1TB Costs: Rs5500 c. Internal to External Converter Costs: Rs650 I have the following options: (i) Buy an External HDD, backup my data. Try to repair bad sectors of HDD. Then two cases arise: (a) My Internal HDD gets repaired [almost] (b) My internal HDD doesn't get repaired. Then I need to buy another internal HDD and replace the damaged one. OR break the seal of the external one and put it inside my laptop as internal. Breaking the case involves risks. (ii) Buy a Internal HDD and an Internal to External Converter Case [Not very reliable], backup my data. Try to repair bad sectors of HDD. Then two cases arise: (a) My Internal HDD gets repaired [almost] (b) My internal HDD doesn't get repaired. Then I need to just put in the new internal HDD I just bought. Experts, please guide me as to what will be the most VFM option? Also, if a HDD is failing, is it that I shouldn't read from it too otherwise there is a chance of other sectors failing? What I mean is, is it wrong to read from the HDD without taking backup first?

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• IE won't load PDF in a window created with window.open

  - by Dean

  Here's the problem, which only occurs in Internet Explorer (IE). I have a page that has links to several different types of files. Links from these files execute a Javascript function that opens a new window and loads the specific file. This works great, unless the file I need to open in the new window is a PDF in which case the window is blank, even though the URL is in the address field. Refreshing that window using F5 doesn't help. However, if I put the cursor in the address field and press <enter> the PDF loads right up. This problem only occurs in IE. I have seen it in IE 7 and 8 and am using Adobe Acrobat Reader 9. In Firefox (PC and Mac) everything works perfectly. In Chrome (Mac), the PDF is downloaded. In Safari (Mac) it works. In Opera (Mac) it prompts me to open or save. Basically, everything probably works fine, except for IE. I have searched for similar problems and have seen some posts where it was suggested to adjust some of the Internet Options on IE. I have tried this but it doesn't help, and the problem wasn't exactly the same anyway. Here's the Javascript function I use to open the new window. function newwin(url,w,h) { win = window.open(url,"temp","width="+w+",height="+h+",menubar=yes,toolbar=yes,location=yes,status=yes,scrollbars=auto,resizable=yes"); win.focus(); } You can see that I pass in the URL as well as the height, h, and width, w, of the window. I've used a function like this for years and as far as I know have never had a problem. I call the newwin() function using this. <a href="javascript:newwin('/path/document.pdf',400,300)">document.pdf</a> (Yes, I know there are other, better ways than using inline JS, and I've even tried some of them because I've run out of things to try, but nothing works.) So, if anyone has an idea as to what might be causing this problem, I'd love to hear it.

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• How to start new browser window in cpecified location whith cpecified size

  - by Pritorian

  Hi all! I create a new instance and trying to resize new instance of browser like this: [System.Runtime.InteropServices.DllImport("user32.dll")] private static extern bool GetWindowInfo(IntPtr hwnd, ref tagWINDOWINFO pwi); [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)] public struct tagRECT { /// LONG->int public int left; /// LONG->int public int top; /// LONG->int public int right; /// LONG->int public int bottom; } [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)] public struct tagWINDOWINFO { /// DWORD->unsigned int public uint cbSize; /// RECT->tagRECT public tagRECT rcWindow; /// RECT->tagRECT public tagRECT rcClient; /// DWORD->unsigned int public uint dwStyle; /// DWORD->unsigned int public uint dwExStyle; /// DWORD->unsigned int public uint dwWindowStatus; /// UINT->unsigned int public uint cxWindowBorders; /// UINT->unsigned int public uint cyWindowBorders; /// ATOM->WORD->unsigned short public ushort atomWindowType; /// WORD->unsigned short public ushort wCreatorVersion; } [System.Runtime.InteropServices.DllImport("user32.dll")] private static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint); [System.Runtime.InteropServices.DllImport("user32.dll")] private static extern bool UpdateWindow(IntPtr hWnd); private void button2_Click(object sender, EventArgs e) { using (System.Diagnostics.Process browserProc = new System.Diagnostics.Process()) { browserProc.StartInfo.FileName = webBrowser1.Url.ToString(); browserProc.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Minimized; int i= browserProc.Id; tagWINDOWINFO info = new tagWINDOWINFO(); info.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(info); browserProc.Start(); GetWindowInfo(browserProc.MainWindowHandle, ref info); browserProc.WaitForInputIdle(); string str = browserProc.MainWindowTitle; MoveWindow(browserProc.MainWindowHandle, 100, 100, 100, 100, true); UpdateWindow(browserProc.MainWindowHandle); } } But I get an "No process is associated with this object". Could anyone help? Or mb other ideas how to run new browser window whith specified size and location?

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• Opening pop up in Joomla

  - by user258100

  I am trying to have people be able to open HTML widgets by clicking on a button in my Joomla page. All the widgets are different sizes. The code is entered as HTML in Jumi. Currently I have the action set to: "On click open in new window without browser navigation." The problem is this this always opens in a full screen size with the widget showing up in a corner. How do I control the size of this new window for each widget? Thanks

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• Create new etherpad using PHP and CURL

  - by Kyle Mathews

  I'm trying to write a simple PHP script which automatically sets up new etherpads (see http://etherpad.com/). They don't have an API (yet) for creating new pads so I'm trying to figure if I can do things another way. After playing around some, I found that if you append a random string to etherpad.com to a not-yet-created pad, it'll come back with a form asking if you want to create a new etherpad at that address. If you submit that form, a new pad will be created at that URL. My thought then was I could just create a PHP script using CURL that would duplicate that form and trick etherpad into creating a new pad at whatever URL I give it. I wrote the script but so far I can't get it working. Can someone tell me what I'm doing wrong? First, here's the HTML form on the etherpad creation page: ` <p><tt id="padurl">http://etherpad.com/lsdjfsljfa-fdj-lsdf</tt></p> <br/> <p>There is no EtherPad document here. Would you like to create one?</p> <input type="hidden" value="lsdjfsljfa-fdj-lsdf" name="padId"/> <input type="submit" value="Create Pad" id="createPad"/> ` Then here's my code which tries to submit the form using CURL $ch = curl_init(); //set POST variables $url = "http://etherpad.com/ep/pad/create?padId=ldjfal-djfa-ldkfjal"; $fields = array( 'padId'=>urlencode("ldjfal-djfa-ldkfjal"), ); $useragent="Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30)"; // set user agent curl_setopt($ch, CURLOPT_USERAGENT, $useragent); //url-ify the data for the POST foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value; } print_r($fields_string); //open connection $ch = curl_init(); //set the url, number of POST vars, POST data curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_POST,count($fields)); curl_setopt($ch,CURLOPT_POSTFIELDS,$fields_string); //execute post $result = curl_exec($ch); print_r($result); //close connection curl_close($ch); When I run the script, PHP reports back that everything executed correctly but etherpad doesn't create my pad. Any clues what's going on?

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• Referencing both an old version and new version of the same DLL (VB.Net)

  - by ckittel

  Consider the following situation: WidgetCompany produced a .NET DLL in 2006 called Widget.dll, version 1.0. I consumed this Widget.dll file throughout my VB.Net application. Over time, WidgetCompany has been updating Widget.dll, I never bothered to keep up, continuing to ship version 1.0 of Widget.dll with my software. It's now 2010, my project is now a VB.Net 3.5 application and WidgetCompany has come out with Widget.dll version 3.0. It looks and functions almost identical to Widget.dll version 1.0, using all the same namespaces and type names from before. However, Widget.dll version 3.0 has many run-time breaking changes since 1.0 and I cannot simply cut over to the new version; however, I don't want to continue developing against the 1.0 version and therefore keep digging myself deeper in the hole. What I want to do is do all new development in my project with Widget.dll version 3.0, whilst keeping Widget.dll version 1.0 around until I find time to convert all of my 1.0 consumption to the newer 3.0 code. Now, for starters, I obviously cannot simply reference both Widget.dll (Ver 1.0) and Widget.dll (Ver 3.0) in Visual Studio. Doing so gives me the following message: "A reference to 'Widget.dll' could not be added. A reference to the component 'Widget' already exists in the project." To work around that, I can simply rename version 3.0 Widget.dll to Widget.3.dll. But this is where I'm stuck. Any attempts to reference types found in "the dll" leads to ambiguity and the compiler obviously doesn't have any clue as to what I really want in this or that case. Is there something I can do that gives a DLL a new "root" Namespace or something? For example, if I could say "Widget.dll has a new root namespace of Legacy" then I could update existing code to reference the types found in Legacy.<RootNamespace> namespace while all new code could simply reference types from the <RootNamespace> namespace. Pipe dream or reality? Are there other solutions to situations this (besides "don't get in this situation in the first place")?

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• Why can't I reclaim my dynamically allocated memory using the "delete" keyword?

  - by synaptik

  I have the following class: class Patient { public: Patient(int x); ~Patient(); private: int* RP; }; Patient::Patient(int x) { RP = new int [x]; } Patient::~Patient() { delete [] RP; } I create an instance of this class on the stack as follows: void f() { Patient p(10); } Now, when f() returns, I get a "double free or corruption" error, which signals to me that something is attempted to be deleted more than once. But I don't understand why that would be so. The space for the array is created on the heap, and just because the function from inside which the space was allocated returns, I wouldn't expect the space to be reclaimed. I thought that if I allocate space on the heap (using the new keyword), then the only way to reclaim that space is to use the delete keyword. Help! :)

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• Bad allocation exceptions in C++

  - by me1982

  Hello, In a school project of mine I was requested to create a program not using STL. In the program I use alot of Pointer* = new Something; if (Pointer == NULL) throw AllocationError(); My question is about allocation errors: 1. is there an autamtic exception thrown by new when allocation fails? 2. if so how can I catch it if I'm not using STL (#include "exception.h) 3. is using the NULL testing enugh? thank you. I'm using eclipseCDT(C++) with MinGW on windows 7.

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• new operator overwriting an existing object

  - by dvpdiner2

  I have a custom FastStack class, implemented as a fixed size array and an index into that array. In my copy constructor, I allocate the array and then assign each object from the copy's array into the new array. There's some refcounting in the objects on the stack, hence assignment is used rather than a simple copy. The problem is that when allocating the array, it sometimes overwrites part of the other stack's array. As can be expected, this leads to eventual segmentation faults when that data is dereferenced. class FastStack { private: int m_size, m_ptr; ObjectRef* m_stack; public: FastStack(int size) : m_size(size), m_ptr(-1) { m_stack = new ObjectRef[m_size]; } FastStack(const FastStack& copy) : m_size(copy.m_size), m_ptr(copy.m_ptr) { long a = (long)copy.m_stack[0]; m_stack = new ObjectRef[m_size]; if ((long)copy.m_stack[0] != a) fprintf(stderr, "\nWe have a serious problem!\n\n"); for (int i = 0; i <= m_ptr; i++) m_stack[i] = copy.m_stack[i]; } ~FastStack() { delete[] m_stack; } }; class ObjectRef { private: DataObj* m_obj; public: ObjectRef() : m_obj(0) { } ObjectRef(DataObj* obj) : m_obj(obj) { if (m_obj) m_obj->addRef(); } ObjectRef(const ObjectRef& obj) : m_obj(obj.m_obj) { if (m_obj) m_obj->addRef(); } ~ObjectRef() { if (m_obj) m_obj->delRef(); } ObjectRef& operator=(DataObj* obj) { if (obj) obj->addRef(); if (m_obj) m_obj->delRef(); m_obj = obj; return *this; } ObjectRef& operator=(const ObjectRef& obj) { if (obj.m_obj) obj.m_obj->addRef(); if (m_obj) m_obj->delRef(); m_obj = obj.m_obj; return *this; } }; I see that "We have a serious problem!" line shortly before a segfault, and stepping through it with gdb I can see that one of the ObjectRefs created by new has the same address as the other stack's array. My first instinct is to say that new should never be allocating memory that is already in use, but that clearly seems to be the case here and I am at a complete loss as to what can be done. Added: At the time that I see this happen, m_size = 2 and m_ptr = 0.

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• PHP class referencing confusion across multiple files

  - by DssTrainer

  I have an index.php file that has 3 includes <?php require_once('mod.php'); $mod = new Mod(); require_once('start.php'); require_once('tools.php'); ....some code.... ?> I need to be able to reference the $mod object inside the start.php and tools.php. How do I pass that object to be referenced by those 2 other require files? Basically the mod.php is a class that has an array list generated in its __construct(). I want to use that array list data inside the startup.php and tools.php file but not sure how to pass in the existing one without calling "new" inside both of those files separately which doesn't do what I need since it resets everything. Thanks!

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• overriding new ubuntu installation

  - by tkoomzaaskz

  I've got a ubuntu 11.10 which has lost its support in May 2013, now I'd like to reintall up to the most up-to-date LTS, which is 12.04. My question is regarding my current partitions and doing backups. Is there a safe way to backup my data on some local partitions instead of copying files into DVDs/external drives (this is very uncormortable in my situation). Following are system commands shoing my disk: $ lsblk NAME MAJ:MIN RM SIZE RO MOUNTPOINT sda 8:0 0 232,9G 0 +-sda1 8:1 0 48,8G 0 +-sda2 8:2 0 63G 0 +-sda3 8:3 0 1K 0 +-sda4 8:4 0 53,7G 0 / +-sda5 8:5 0 18,6G 0 +-sda6 8:6 0 25,5G 0 +-sda7 8:7 0 23,3G 0 [SWAP] sr0 11:0 1 1024M 0 and $ sudo fdisk -l [sudo] password for xyz: Disk /dev/sda: 250.1 GB, 250059350016 bytes glowic: 255, sektorów/sciezke: 63, cylindrów: 30401, w sumie sektorów: 488397168 Jednostka = sektorów, czyli 1 * 512 = 512 bajtów Rozmiar sektora (logiczny/fizyczny) w bajtach: 512 / 512 Rozmiar we/wy (minimalny/optymalny) w bajtach: 512 / 512 Identyfikator dysku: 0xc3ffc3ff Device Boot Beginning End Blocks ID System /dev/sda1 * 2048 102402047 51200000 7 HPFS/NTFS/exFAT /dev/sda2 215044096 347080703 66018304 7 HPFS/NTFS/exFAT /dev/sda3 347082750 488392064 70654657+ 5 Extended /dev/sda4 102402048 215042047 56320000 83 Linux /dev/sda5 395905923 434975939 19535008+ 83 Linux /dev/sda6 434976003 488392064 26708031 83 Linux /dev/sda7 347082752 395905023 24411136 82 Linux swap / Solaris In the beginning I had Windows Vista pre-installed with the machine when it was bought (damn!) and I installed linux (the one I have now). The windows-program in master boot record has been overriden by grub and now I can boot with both Windows and Linux. This is list of mounted devices: $ mount /dev/sda4 on / type ext4 (rw,errors=remount-ro,commit=0) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) fusectl on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/tomasz/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=tomasz) It's strange (I don't remember such thing) that my current linux uses only one partition (/dev/sda4). But, anyway, it seems like that. My final question is: am I able to use one of the existing linux partitions for a backup and install ubuntu 12.04 without removing neither windows nor ubuntu 11.04? I mean - will grub automatically accept both old windows vista and 2 linuxes (old 11.10 and "new" 12.04)? Is there any hidden operation done while installation that could harm my custom-backup-partition while installing? my fstab file: proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda4 during installation UUID=d44e89f5-9da2-48eb-83b3-887652ec95d2 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda7 during installation UUID=bbe50535-ba57-434a-9272-211d859f0e00 none swap sw 0 0 sda5 and sda6 are trash partitions created during unsuccessful linux installation (this was linux installation before my current installation), I didn't delete these partitions, but I have access to them (and I can use them as backup partitions). edit: second question is: why does lsblk show /dev/sda having 232,9G while fdisk shows that it has 250.1GB? Where does the difference come from?

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• nginx + php-fpm cycle redirection error on linode new vps

  - by chifliiiii

  I'm new to nginx, and I'm trying to make my first server run. I followed this guide as I'm trying to use it for a multisite wordpress site. After installing everything, I get a 500 Internal server error. If I check logs, I see this: 012/09/27 08:55:54 [error] 11565#0: *8 rewrite or internal redirection cycle while internally redirecting to "/index.html", client: xxx.xxx.xxx.xxx, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "www.mydomain.com" 2012/09/27 08:59:32 [error] 11618#0: *1 rewrite or internal redirection cycle while internally redirecting to "/index.html", client: xxx.xxx.xxx.xxx, server: localhost, request: "GET /phpmyadmin HTTP/1.1", host: "www.mydomain.com" My conf files are the following: nano /etc/nginx/sites-available/mydomain.com server { listen 80 default_server; server_name mydomain.com *.mydomain.com; root /srv/www/aciup.com/public; access_log /srv/www/mydomain.com/log/access.log; error_log /srv/www/mydomain.com/log/error.log; location / { index index.php; try_files $uri $uri/ /index.php?$args; } # Add trailing slash to */wp-admin requests. rewrite /wp-admin$ $scheme://$host$uri/ permanent; # Directives to send expires headers and turn off 404 error logging. location ~* \.(js|css|png|jpg|jpeg|gif|ico)$ { expires 24h; log_not_found off; } # this prevents hidden files (beginning with a period) from being served location ~ /\. { access_log off; log_not_found off; deny all; } # Pass uploaded files to wp-includes/ms-files.php. rewrite /files/$ /index.php last; if ($uri !~ wp-content/plugins) { rewrite /files/(.+)$ /wp-includes/ms-files.php?file=$1 last; } # Rewrite multisite '.../wp-.*' and '.../*.php'. if (!-e $request_filename) { rewrite ^/[_0-9a-zA-Z-]+(/wp-.*) $1 last; rewrite ^/[_0-9a-zA-Z-]+.*(/wp-admin/.*\.php)$ $1 last; rewrite ^/[_0-9a-zA-Z-]+(/.*\.php)$ $1 last; } location ~ \.php$ { client_max_body_size 25M; fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; include /etc/nginx/fastcgi_params; } } nano /etc/nginx/nginx.conf user www-data; worker_processes 4; worker_cpu_affinity 0001 0010 0100 1000; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 2048; } http { include /etc/nginx/mime.types; access_log /var/log/nginx/access.log; sendfile on; tcp_nopush on; keepalive_timeout 5; tcp_nodelay on; server_tokens off; gzip on; gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript; gzip_disable "MSIE [1-6]\.(?!.*SV1)"; include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } Any help will be appreciated.

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• Email from my new vps is marked as spam

  - by Chriswede

  I got a new vps from x10vps (x10hosting) and set up the domain via cloudflare. This is what the email looks like: Delivered-To: [email protected] Received: by 10.64.19.240 with SMTP id i16csp357708iee; Tue, 9 Oct 2012 01:29:48 -0700 (PDT) Received: by 10.50.57.130 with SMTP id i2mr908846igq.56.1349771387599; Tue, 09 Oct 2012 01:29:47 -0700 (PDT) Return-Path: <[email protected]> Received: from power.SOURCEAPE.COM ([198.91.90.116]) by mx.google.com with ESMTPS id v8si25630942ica.46.2012.10.09.01.29.46 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 09 Oct 2012 01:29:47 -0700 (PDT) Received-SPF: temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) client-ip=198.91.90.116; Authentication-Results: mx.google.com; spf=temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) [email protected] Received: from nk11p03mm-asmtp010.mac.com ([17.158.232.169]:54276) by power.SOURCEAPE.COM with esmtp (Exim 4.80) (envelope-from <[email protected]>) id 1TLVBD-0004Ig-1Y for [email protected]; Tue, 09 Oct 2012 12:28:43 +0400 I then tried to enable SPF and DKIM and got following massage In order to ensure that SPF or DKIM takes effect, you must confirm that this server is an authoritative nameserver for chvw.de. If you need help, contact your hosting provider. Status: Enabled Warning: cPanel is unable to verify that this server is an authoritative nameserver for chvw.de. [?] and the email header now looks like this: Delivered-To: [email protected] Received: by 10.50.183.227 with SMTP id ep3csp14506igc; Tue, 9 Oct 2012 01:55:23 -0700 (PDT) Received: by 10.50.40.133 with SMTP id x5mr992934igk.32.1349772923717; Tue, 09 Oct 2012 01:55:23 -0700 (PDT) Return-Path: <[email protected]> Received: from power.SOURCEAPE.COM ([198.91.90.116]) by mx.google.com with ESMTPS id ng8si25688859icb.42.2012.10.09.01.55.23 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 09 Oct 2012 01:55:23 -0700 (PDT) Received-SPF: temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) client-ip=198.91.90.116; Authentication-Results: mx.google.com; spf=temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) [email protected]; dkim=neutral (bad format) [email protected] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=chvw.de; s=default; h=Message-ID:Subject:To:From:Date:Content-Transfer-Encoding:Content-Type:MIME-Version; bh=iugsx3Lx0KnqjR7dj3wyQHnJ9pe/z3ntYEVk80k8rx4=; b=IrYsCtHdoPubXVOvLqxd7sLE/TyQTS5P3OrEg5SSUSKnQQcQ/fWWyBrmsrgkFSsw6jCmmRWMDR09vH5bQRpFPMA57B7pf8QRKhwXOWFBV+GnVUqICsfRjnNPvhx/lNp5; Received: from localhost ([127.0.0.1]:46539 helo=direct.chvw.de) by power.SOURCEAPE.COM with esmtpa (Exim 4.80) (envelope-from <[email protected]>) id 1TLVb0-0004dZ-Kd for [email protected]; Tue, 09 Oct 2012 12:55:22 +0400

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• Can we 301 redirect to a new page, but still publish the old content somewhere else?

  - by KBS

  We have a page on the site which ranks well for an SEO term (top 5) but contains old information. We have added a new page but Google doesn't rank it that well. Information on these pages is time sensitive. Old: example.com/2013-related-information.html New: example.com/2014-related-information.html Obvious solution is to delete old page and do a 301 redirect to the new page. Now, can we still keep the old page by giving it a new URL. example.com/2013-related-information.html is redirected to example.com/2014-related-information.html example.com/2014-related-information.html is recreated with a new address such as example.com/new-2013-related-information.html What we are trying to do is to send the user to the fresh page but still not destroying the record copy if someone wants to go and dig up the old information.

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• Entity Framework - adding new items via a navigation property

  - by Robert

  I have come across what appears to be very peculiar behaviour using entity framework 4.0. I have a User entity, which has a Company (A Company has many Users). If I do this, everything works as expected and I get a nice shiny new user in the database: var company = _model.Companies.First(); company.Users.Add(new User(1, "John", "Smith")); _model.SaveChanges(); However, if I do this, then I get nothing new in the database, and no exceptions thrown: var existingUser = _model.Users.First(); var company = existingUser.Company; company.Users.Add(new User(1, "John", "Smith")); _model.SaveChanges(); So it appears that if I add a User to the Company that is pulled directly from the model, then everything works fine. However if the User is added to a Company that is pulled as a navigation property of another object, then it doesn't work. Can someone tell me if this is expected behaviour, or if there is something I can do to make it so that it is? Thanks!

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• javascript new Date(0) class shows 16 hours?

  - by Jonah

  interval = new Date(0); return interval.getHours(); The above returns 16. I expect it to return 0. Any pointers? getMinutes() and getSeconds() return zero as expected. Thanks! I am trying to make a timer: function Timer(onUpdate) { this.initialTime = 0; this.timeStart = null; this.onUpdate = onUpdate this.getTotalTime = function() { timeEnd = new Date(); diff = timeEnd.getTime() - this.timeStart.getTime(); return diff + this.initialTime; }; this.formatTime = function() { interval = new Date(this.getTotalTime()); return this.zeroPad(interval.getHours(), 2) + ":" + this.zeroPad(interval.getMinutes(),2) + ":" + this.zeroPad(interval.getSeconds(),2); }; this.start = function() { this.timeStart = new Date(); this.onUpdate(this.formatTime()); var timerInstance = this; setTimeout(function() { timerInstance.updateTime(); }, 1000); }; this.updateTime = function() { this.onUpdate(this.formatTime()); var timerInstance = this; setTimeout(function() { timerInstance.updateTime(); }, 1000); }; this.zeroPad = function(num,count) { var numZeropad = num + ''; while(numZeropad.length < count) { numZeropad = "0" + numZeropad; } return numZeropad; } } It all works fine except for the 16 hour difference. Any ideas?

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• Can't submit new object to WCF DataService because of Primary Key constraint

  - by Rob

  I've got a SQL database that uses Guid's for PK's and upon insert, it generates a NewId(). I have an EF data context setup pointing to that database with the primary keys setup with the Entity key:true, Setter:private and StoreGeneratedPattern:Identity because I want the DB to manage the keys and not have code set the PK property. I have an OData (System.Web.Data.Services.DataService) endpoint to access this data (just like: Hanselman did. I have another app that has a service reference to this service. Upon trying to create a new object from this reference (i.e. Product), the ProductId Primary Key is being defaulted to Guid.Empty when doing var serviceEntities = new ServiceEntities(serviceUri); //OData endpoint var product = new Product(); product.Name = "New Product"; serviceEntities.AddToProducts(product); serviceEntities.SaveChanges(); // error happens here When debugging, I look at the Product.ProductId property and it's set to Guid.Empty. When called SaveChanges, I do not want the ProductId field to be sent to the service. The response I get is: Error processing request stream. Property 'ProductId' is a read-only property and cannot be updated. Please make sure that this property is not present in the request payload. Is there a way to do this or what can I do to get this setup correctly and still have the DB generated the keys. Here is the same setup as the Product example above.

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• Add new language to existing Xcode project localization

  - by leolobato

  Hey guys, I'm working on an existing Xcode 3.2.2 Universal iPhone OS project which is already localized for 4 languages (EN, IT, DE and FR). We are now adding a new language (JA) into this project. Each existing .lproj folder (en.lproj, it.lproj, de.lproj and fr.lproj) has almost 60 files - including PNGs, HTMLs and the Localizable.strings file. Each one of those files appear as localized groups inside Groups & Files in Xcode. They're spread all over the tree. If I right-click one of those groups (say, Localizable.strings) inside Xcode, Get Info, click on "Add Localization" and type "ja" - as the Xcode docs suggest, nothing happens. From what I read in this newgroup, it's possibly because of the way those folders are named. If they were named like English.lproj and Italian.lproj, this was supposed to work. So, for me to actually import a new language localized file into the existing group, I have to: Right-click the localized group file. Choose "Add Existing File". Select the corresponding file inside the ja.lproj folder. I'm about to get a new ja.lproj folder with those 60 localized files and would love to import them in the project in a way that doesn't involve searching for every single file in Groups & Trees and performing those steps... for every one of those 60 files. Is that possible? Is there a right (or better) way to import a new language into this Xcode project?

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