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Articles indexed Monday July 1 2013

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  • I keep on getting "save operation failure" after any change on my XCode Data Model

    - by Philip Schoch
    I started using Core Data for iPhone development. I started out by creating a very simple entity (called Evaluation) with just one string property (called evaluationTopic). I had following code for inserting a fresh string: - (void)insertNewObject { // Create a new instance of the entity managed by the fetched results controller. NSManagedObjectContext *context = [fetchedResultsController managedObjectContext]; NSEntityDescription *entity = [[fetchedResultsController fetchRequest] entity]; NSManagedObject *newManagedObject = [NSEntityDescription insertNewObjectForEntityForName:[entity name] inManagedObjectContext:context]; // If appropriate, configure the new managed object. [newManagedObject setValue:@"My Repeating String" forKey:@"evaluationTopic"]; // Save the context. NSError *error; if (![context save:&error]) { // Handle the error... } [self.tableView reloadData]; } This worked perfectly fine and by pushing the +button a new "My Repeating String" would be added to the table view and be in persistent store. I then pressed "Design - Add Model Version" in XCode. I added three entities to the existing entity and also added new properties to the existing "Evaluation" entity. Then, I created new files off the entities by pressing "File - New File - Managed Object Classes" and created a new .h and .m file for my four entities, including the "Evaluation" entity with Evaluation.h and Evaluation.m. Now I changed the model version by setting "Design - Data Model - Set Current Version". After having done all this, I changed my insertMethod: - (void)insertNewObject { // Create a new instance of the entity managed by the fetched results controller. NSManagedObjectContext *context = [fetchedResultsController managedObjectContext]; NSEntityDescription *entity = [[fetchedResultsController fetchRequest] entity]; Evaluation *evaluation = (Evaluation *) [NSEntityDescription insertNewObjectForEntityForName:[entity name] inManagedObjectContext:context]; // If appropriate, configure the new managed object. [evaluation setValue:@"My even new string" forKey:@"evaluationSpeechTopic"]; // Save the context. NSError *error; if (![context save:&error]) { // Handle the error... } [self.tableView reloadData]; } This does not work though! Every time I want to add a row the simulator crashes and I get the following: "NSInternalInconsistencyException', reason: 'This NSPersistentStoreCoordinator has no persistent stores. It cannot perform a save operation.'" I had this error before I knew about creating new version after changing anything on the datamodel, but why is this still coming up? Do I need to do any mapping (even though I just added entities and properties that did not exist before?). In the Apple Dev tutorial it sounds very easy but I have been struggling with this for long time, never worked after changing model version.

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  • Can i enlarge os c drive of my windows 8? [migrated]

    - by Sorgatz
    Last year I got a new Western Digital WD Blue 500GB HDD to replace my old drive. The first thing I did was to install latest Windows 8. While installing Windows 8 I created 3 partitions, C drive for the OS and others for storage. The OS partition is 120GB (which at the time I thought would be plenty big) but I'm now realizing its too small! I wonder if it's possible to re-size HDD partition without reformatting and re-install my Windows 8. So that is my question, Can i enlarge os c drive of my windows 8 without having to re-format? I've used the Norton Partition Magic and Disk Management to make this happen but there doesn't seem to be any options to make it happen. Thanks for any help you guys can give regarding my question. I've worked hard to optimize my current install of Windows 8 and would hate to start all over again.

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  • OpenVPN on Android TCP retransmissions after OpenVPN server reboot

    - by anogaki
    I raised OpenVPN on server for the first time. It worked fine until the server rebooted. The firewall configuration is unchanged. When I tcpdump from tun interface on the server, I always get TCP retransmissions on all TCP packets larger than a few bytes in Android. Using a similar(read: same) configuration on my Linux box from where I'm posting this message now works just fine; no retransmissions, no loss. It did work just fine before the server rebooted. What could possibly cause this? I already tried rebooting Android, it didn't help. Client configuration, used on both Linux PC and Android tablet: dev tun client remote 192.168.0.1 persist-key persist-tun nobind pkcs12 user.p12 mssfix 1480 cipher AES-256-CBC verb 3 1480 is below the mtu of uplink connection on server which is 1492. I tried adding tun-mtu 1480 to Android but that didn't help either.

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  • Cannot Access IIS Website Locally Using www

    - by Reafidy
    I have small website hosted on our WS 2008 R2 server using IIS 7. I can access our website from anywhere in the world using: www.ourwebsite.co.nz But from any local computer on our internal network I can only access the website using: http://ourwebsite.co.nz Our employees are constantly asking why they cant just use www.ourwebsite.co.nz I'm not sure what info to provide. I presume that because the wesbite correctly functions from outside the local network that I have correctly setup our Web DNS A records at our domain host. And the problem may lie with our local DNS configuration.

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  • How to setup a virtual host in Ubuntu?

    - by Rade
    I have an app that's accessible via 1.2.3.4/myapp. The app is installed in /var/www/myapp. I've set up a subdomain(apps.mydomain.com) that points to 1.2.3.4. I want the server to point to var/www/myapp if I type apps.mydomain.com/myapp, how do I do that? I have experience creating virtual hosts(lots of them) locally but I'm lost because it's now in production and it's a little different. Here's my virtual host config: <VirtualHost *:80> ServerAdmin [email protected] ServerName apps.mydomain.com/myapp DocumentRoot /var/www/myapp/public <Directory /> Options FollowSymLinks AllowOverride All </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride All Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> Any idea why I still see the files instead of pointing me to the document root? Just in case someone might ask, the app is based on Laravel 4 framework. It's really bad right now because anyone can access the files from the browser.

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  • E-mail from specific domain not delivered to one of the cc: recipients on Exchange 2010

    - by BobC
    we have a user on Exchange 2010 server who doesn't get email from one specific domain if her address is in cc: field. If she is a main recipient (To:) it goes through. We checked Exchange logs and it looks like our server doesn't even try to deliver it, it simply ignores her email address completely. We did several tests: send email with her email address in cc: field from another domain, succeeded send email with her email address in to: field from another domain, succeeded send email with her email address in to: field from affected domain, succeeded turn off all email rules check via webmail We also turned off firewall, antispam and antivirus for SMTP rule. Does anyone have any idea what could be an issue here? Thanks

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  • Remove CGI from IIS7

    - by jekcom
    I ran some security scan and the scan said that all kind of CGI stuff are potential thread. This is part of the result : (ash) is present in the cgi-bin directory (bash) is present in the cgi-bin directory By exploiting this vulnerability, a malicious user may be able to execute arbitrary commands on a remote system. In some cases, the hacker may be able to gain root level access to the system, in which case the hacker might be able to cause copious damage to the system, or use the system as a jumping off point to target other systems on the network for intrusion and/or denial of service attacks. and many more related to cgi-bin directory. First I searched all the server for cgi-bin folder and it did not find any. Second I'm running my website on pure .NET and I don't use any scripts like php. Question is how can I remove this CGI thing from the IIS?

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  • 8Gb Fiber Channcel HBA vs. 10 Gb SPF+ Converged HBA

    - by Hossein Aarabi
    I am putting a Dell server together, more specifically R720. I have to select the correct Host Bus Adapter. This HBA on R710 will connect to a storage device. I am confused between these two: QLogic 2562, Dual Port 8Gb Optical Fiber Channel HBA (price $2,045) QLogic 8262, Dual Port 10Gb SFP+, Converged Network Adapter (price $1,618) I thought since the QLogic 2562 is a fiber channel and is more expensive then it is faster in terms of IOPS. But, it is a 8Gb as opposed to 10 Gb of SFP+. My questions: Which one is better (IOPS performance, etc.)? Why should I choose one over another?

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  • Same domain only : smtp; 5.1.0 - Unknown address error 530-'SMTP authentication is required

    - by user124672
    I have a very strange problem after moving my netwave.be domain from WebHost4Life to Arvixe. I configured several email adresses, like [email protected] and [email protected] For POP3 I can use mail.netwave.be, a mailserver hosted by Arvixe. However, for SMTP I have to use relay.skynet.be. Skynet (Belgacom) is one of the biggest internet providers in Belgium and blocks smtp requests to external mailservers. So for years I've been using relay.skynet.be to send my messages using [email protected] as the sender. The worked perfectly. After moving my domain to Arvixe, this is no longer the case. I can send emails to people, no problem. I have received emails too, so I suspect that's ok too. But I can't send emails from one user of my domain to another user. For example, if I send a mail from [email protected] to [email protected], relay.skynet.be picks up the mail just fine. A few seconds later, I get a 'Delivery Status Notification (Failure)' mail that contains: Reporting-MTA: dns; mailrelay012.isp.belgacom.be Final-Recipient: rfc822;[email protected] Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [69.72.141.4] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 530-'SMTP authentication is required.' (delivery attempts: 0) Like I said, this only seems to be the case when both the sender and recipient are adresses of a domain hosted by Arvixe. I have serveral accounts not related to Arvixe at all. I can use relay.skynet.be to send mail to [email protected] using these accounts. Likewise, I can use relay.skynet.be to send mail from [email protected] to these accounts. but not from one Arvixe account to another. I hope I have clearly outlined the problem and someone will be able to help me.

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  • Adding QR Codes to Exclaimer

    - by Matt
    We are running a piece of software called Exclaimer which sets a standard template for email signatures and grabs some details from Active directory, like Contact numbers and title. I need to add a QR Code to the signature but it will need to be different for 50 + people, so I cannot use the standard template. I could create a template for everyone individually, but I would like to know if there is a more efficient way of doing this?

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  • IIS 7 on 2008r2 shows blank page

    - by sysdmxm
    I am using IIS7 on Windows Server 2008r2. I have recently installed php and IIS. I am trying to browse to the index.php but it returns a blank page. It loads the favicon and the header of my page. When I load an info.php file it is not blank. If I disable Anonymus Authentication it the same index.php returns IIS 7.5 Detailed Error - 401.2 - Unauthorized. What is strange is I installed this exact code onto another fresh IIS install I just did and it loads fine. Permissions for the directory are the same for both.

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  • Can i enlarge os c drive of my windows 8?

    - by Sorgatz
    Last year I got a new Western Digital WD Blue 500GB HDD to replace my old drive. The first thing I did was to install latest Windows 8. While installing Windows 8 I created 3 partitions, C drive for the OS and others for storage. The OS partition is 120GB (which at the time I thought would be plenty big) but I'm now realizing its too small! I wonder if it's possible to re-size HDD partition without reformatting and re-install my Windows 8. So that is my question, Can i enlarge os c drive of my windows 8 without having to re-format? I've used the Norton Partition Magic and Disk Management to make this happen but there doesn't seem to be any options to make it happen. Thanks for any help you guys can give regarding my question. I've worked hard to optimize my current install of Windows 8 and would hate to start all over again.

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  • How do I fix VMware “Unidentified Networks” in Windows 7 Professional 64-bit SP1?

    - by Francis
    I have recently installed VMware Workstation 7 onto Windows 7 Professional 64-bit SP1 and both VMnet1 and VMnet8 appeared as "Unidentified Networks". I have tried editing HKLM\SYSTEM\CurrentControlSet\Control\Class{4D36E972-E325-11CE-BFC1-08002BE10318}, a tip provided by Mathews (Jul 23, 2009) but both virtual NICs still appeared as "Unidentified Networks". I will need both NICs to be listed as "Work" or "Private" and with Internet Access. What other solutions/workarounds? Thanks!

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  • I cannot format my PC

    - by Jesus Buelna
    I have a Toshiba Satellite(1) l505 6gb RAM, 6.00GB hard disk.Initially I have problem with another satellite(2) I had (mother board problem). I took my Laptop to a technician and cost a lot of money (almost as much as buying new one). So, since I have HDD problems with the first one(1) I decided to use the hard disk of the other one(2). I formatted the HDD and erased the partitions it had into 1 partition (or no partition). The problem is that when I try to format with the SO CD, in the screen, where I have to decide in which partition I want to install the SO, the only one option I have says "unallocated partition and I receive this message "Windows cannot install the SO in this partition, run files do not existed or maybe corrupted" When I erased the disk with Parted Magic, Did I erased any files needed for running the installing disk? I don't know. Is it possible to fixed or reinstate the disk to install the OS? By the way, I checked the disk physical health with Parted Magic, and it is OK. One more thing when I erased the disc to 0, I used the safety option offered by the Parted Magic.Need help please.

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  • Run a pc on battery for 3 days?

    - by Zen 8000k
    I am looking for a low power, low end pc able to run 24/7 without overheating and a way to support it in case of power failure. Power failures can be up to 72 hours. The pc dosen't need a monitor or keyboard. A modem must also be protected in case of power failure. When i say low end, i don't mean crap. The cpu needs to be x86 and have at least 1k cpu in this chart: http://www.cpubenchmark.net/index.php What's the best way to do this?

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  • Running a powershell script at startup

    - by RandellK02
    I am writing a script to remove a computer from the domain, rename it, then add it back. It works fine when I set the trigger to AtLogOn but when I switch to AtStartUp I run into some issues. I get this error when it restarts to run the first scheduled task: 0x8007051F: There are currently no logon servers available to service the logon request. I suspect the script tries to run with no network connection set up so I tested using the RandomDelay parameter, and it worked like its suppose to. I cant rely on a random delay so I am looking for an alternative. Is there a way to test the network status before the script begins or a way to delay the script a specific amount of time? I am using Register-ScheduledJob provided by Powershell 3.0 Thanks in advance

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  • The public link of dropbox doesn't work

    - by user828896
    Recently, I find the public link of dropbox such as https://dl.dropboxusercontent.com/u/209352/Temp/Mycss.PNG don't work sometimes. I have to use share dropbox link such as https://www.dropbox.com/s/nr4bb00sd80pgl9/Mycss.PNG It seems that share dropbox link works well. Could tell me what is different between public link and share dropbox link? Can I always use share dropbox link instead of public link ?

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  • What causes Windows Media Player on Windows 8 to not play the entire library?

    - by somequixotic
    Behavior 1: Verify that the WMP playlist is clear of all songs. Turn on the "Shuffle" and "Repeat" features. Double-click on a music track in the Library. Click the "Next" button (double right angle brackets). A random song from any track in the Library is randomly chosen and played. When observing the Playlist (clicking the "Play" tab), the entire contents of the Library appears in the Playlist. Behavior 2: Verify that the WMP playlist is clear of all songs. Turn on the "Shuffle" and "Repeat" features. Double-click on a music track in the Library. Click the "Next" button (double right angle brackets). The button visually depresses like it has registered the click, but nothing happens. Absolutely nothing. Moreover, the "Previous" button is grayed out. When observing the Playlist, only the one song that was double-clicked appears in the Playlist. What causes Behavior 2? I cannot correlate any specific action I've taken with Behavior 2, and Behavior 1 has been the case as long as I can remember, all the way back to Windows XP. Even earlier during my usage of Windows 8, I recall Behavior 1 working correctly. But suddenly, inexplicably, without changing any settings in WMP, Behavior 2 kicked in, and persists after reboots. I've tried sfc /scannow in an administrator prompt. All system files are in order. I've downloaded all Windows Updates and driver updates. I've attempted to alter WMP options and playback settings to no avail. So... what is causing Behavior 2? Is this an intended, valid behavior, or is something malfunctioning? How would I know what that "something" is? How would I go about fixing it without just reinstalling Windows 8 fresh?

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  • Is there a way to tell what the download speed is from a site/server

    - by Memor-X
    i'm looking into which ISP i should go with at the place i'm moving into, one ISP which i have been told good things about has data limits (which when breached will drop your speed to dial-up speed) but multiple memberships which, apart from the cheapest membership, have the same data limits (the cheapest has a 10GB data limit) in their fine print, they say that each different membership has different port speeds, one particular part jumps out at me These speeds are the NBN (National Broadband Network) port speed and not the actual Internet data speed which will vary based on numerous factors including destination you are reaching, your network equipment, network congestion etc. i plan to use the net to download DLC and patch updates for games (particular the insanely large update for the Wii U) and games from Steam (if i find any good one other than this one JRPG) and downloading development resources from free sites like Deposit Files and Mediafire since one membership with a 1000GB data limit is $145 with the port speed being 12Mbps/1Mbps (cheapest) while another with the same limit is $190 with the port speed of 100Mbps/40Mbps (expensive) i am wondering how i can tell what the speed coming from site is since i don't want to be wasting money on speed that makes no difference (unlike memory which i rather have to spare) NOTE: the speeds are for a fiber optic network which where my new place is can only connect via fixed wireless which i may not be able to get with this ISP but if i can get this network then good NOTE 2: most of the resources i get from Deposit Files are always about 200 MB or less, if a resource pack is greater then it's split into multiple archives (like .7z.part) while Mediafire i have to see one bigger than 150MB NOTE 3: one update patch for a PS3 game is close to 4 GB (Disgaea 4) which i need to get access to the DLC and on the weekend i downloaded 5 GB for the Final Fantasy XIV Open Beta for the PS3 which took almost 5 hours

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  • Where in the user profile are the Firefox search engine choices stored?

    - by N Rahl
    We have a large number of user profiles that were created on Ubuntu 10.04 and they had access to Google as a choice in the search bar and Google was the provider for queries typed into the super bar. When logging into these same profiles from Mint 15 client machines, the Google search option does not exist for these users, as is the default for Mint. This setting seems to be user specific, but not a part of the FireFox profile? It seems if it were a part of the FF profile, it would "just work" on Mint for these profiles, so I suspect the configuration may be stored somewhere else in the user's profile? Could someone please tell me where in a user's profile the search engine options are set? We would like to set this once, and then drop this configuration into everyones profile so all of our users don't have to do this manually.

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  • How to stabilize PCIe sound card in its card slot?

    - by Josh
    I have a Soundblaster Recon 3d Fatal1ty sound card and randomly every once in a while my computer won't recognize it. I am almost 100% sure it is something to do with its PCIe slot. After I turn off the computer and just wiggle the card a bit, the computer recognizes the card once I restart. I can't really try it in the other PCIe slot because the video card gets in the way. It is a Biostar TA970XE motherboard. I don't know if it is something to do with the pins on the actual card or if it is something to do with the slot. I couldn't find any related issues about this card on Google. Is there anything I can do to help secure the card in its slot so that my computer will recognize it? Any help is appreciated.

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  • What is a reasonable range for signal strength when next to my router?

    - by Jeff
    I know that these things depend largely on specific hardware but I don't even know if I am in the neighborhood. What would a reasonable range of signal strength be when my device is less than 5 feet from my router? House3 is my main router at 61% strength and that seems very low! Repeater is my... repeater which is 50' away in the next room. I'm not terribly concerned with the Repeater until I get my main router settled.

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  • How to get transparent user interface background in Windows 7

    - by blasteralfred
    I use Windows 7 Home Premium. Recently, when I came through Photoshop in OSX, I was interested by its user interface. It has got a "100% transparent" user interface background, whereas it's usually gray in Windows. I googled for some glass solutions, but all of them provide a "transparent window" or a semi-transparent one, which makes the complete window transparent. These solutions do not work for me, as I just need the UI (gray) background transparent but require all the other elements (such as nav-bars, control buttons, etc.) to have no transparency. Below is a screenshot of what I'm saying: Is this a feature of Photoshop only? How can I achieve the same in Windows 7? Thanks in advance...:)

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  • Acer Aspire One getting extremely hot

    - by ascom
    I have an Acer Aspire One D250-1197. I really better type fast before it overheats again... For some reason, I'm having a problem with heat on my netbook only when I run Joli OS (Ubuntu 9.10 LTS?). When I leave it idle, with nothing running (other than the regular Joli OS desktop and a couple of doing-nothing terminals), heat slowly builds up to the point where the netbook is burning hot to the touch. I have never had this problem when running Windows 7 Starter (even though it gives me plenty of other headaches). It seems that the fan is spinning, but not fast enough to keep up with the heat buildup. Is there something wrong with the fan drivers? The computer doesn't seem to recognize that it is overheating. What can I do to solve this problem (other than shut it off or use Windows)? I'm currently on the wrong side of Earth (I mean, on vacation), so I just need a temporary fix, such as a driver I can install. Also, I have to use Linux, because I have to share out the wired connection in hotels wirelessly to the iPhones. EDIT: I'm switching from Joli OS to a more "proper" and up to date distribution (Xubuntu 13.04). I'll see if it still has the heat problem and try @nod's cpufreq idea.

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  • Linksys WRT54G2 not showing connected PC's in DHCP table

    - by Moose
    For some reason all of a sudden my linksys WRT54G2 no longer shows PC's connected in the DHCP table. It was being touchy then all of a sudden they all just disappeared. It showed 2 of the 4 connected then it showed the other 2 then it only showed 1 and then it was showing none. I seem to be having a connection reset every 30-60 minutes also not sure if that is related to the router going bad or if it is just comcast being it's typical crappy self. I have tried to reset my router and my cable modem and both problems still seem to keep happening(no PC's in table and connection reset every 30-60 mins). Now I know the router doesn't store clients after a router reboot but they normally show up within a matter of minutes for me in the past. Before anyone asks yes all devices on the network are using DHCP and not static. Could this be a sign of the router starting to go bad?

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