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• Items cannot be installed or removed

  - by Gyanendra Kumar Gyan

  installArchives() failed: (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 136187 files and directories currently installed.) Removing pidgin-ppa ... gpg: key "67265EB522BDD6B1C69E66ED7FB8BEE0A1F196A8" not found: eof gpg: 67265EB522BDD6B1C69E66ED7FB8BEE0A1F196A8: delete key failed: eof dpkg: error processing pidgin-ppa (--remove): subprocess installed post-removal script returned error exit status 2 No apport report written because MaxReports is reached already Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot Errors were encountered while processing: pidgin-ppa Error in function: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)

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• Cannot mount USB 3 harddrive

  - by Thijs

  I cannot mount an USB 3 harddrive. When looking at dmesg I got the following error: [ 96.463269] usb 3-2.1: >new low-speed USB device number 10 using xhci_hcd [ 96.485777] usb 3-2.1: >New USB device found, idVendor=046d, idProduct=c025 [ 96.485787] usb 3-2.1: >New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 96.485792] usb 3-2.1: >Product: USB-PS/2 Optical Mouse [ 96.485797] usb 3-2.1: >Manufacturer: B16_b_02 [ 96.486118] usb 3-2.1: >ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes [ 96.490149] input: B16_b_02 USB-PS/2 Optical Mouse as /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2.1/3-2.1:1.0/input/input12 [ 96.490500] hid-generic 0003:046D:C025.0003: >input,hidraw0: USB HID v1.10 Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:14.0-2.1/input0 [ 114.088984] usb 3-2.3: >new high-speed USB device number 11 using xhci_hcd [ 114.105041] usb 3-2.3: >New USB device found, idVendor=13fd, idProduct=1618 [ 114.105051] usb 3-2.3: >New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 257.531777] usb 3-2.3: >USB disconnect, device number 11 [ 258.513912] usb 3-2.4: >new high-speed USB device number 12 using xhci_hcd [ 258.514046] usb 3-2.4: >Device not responding to set address. [ 258.717649] usb 3-2.4: >Device not responding to set address. [ 258.921203] usb 3-2.4: >device not accepting address 12, error -71 [ 258.937388] hub 3-2:1.0: >unable to enumerate USB device on port 4 I have tried to mount the drive on ubuntu-12.04 and it mounts just fine.

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• How to visualize timer functionality in sequence diagram?

  - by truthseeker

  I am developing software for communication with external device through serial port. To better understand the new functionality I am trying to display it in sequence diagram. Flow of events is as follows. I send to the device command to reset it. This is asynchronous operation so there is some delay between request and response (typically 100 ms). There can be case when the answer never comes (for example device is not connected to the specified port or is currently turned off). For this purpose I create a timer with period twice the maximum answer time. In my case it is 2 * 125 ms = 250 ms. If the answer comes in predefined time interval, I destroy already running timer. If the answer doesnt come in predefined interval, timer initiates some action. After this action we can destroy it. How to effectively model this situation in sequence diagram? Addendum 1: Based on advices made by scarfridge i drew following UML diagram. Comment by Ozair is also helpful for simplifying the diagram even more.

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• Allow JMX connection on JVM 1.6.x

  - by Martin Müller

  While trying to monitor a JVM on a remote system using visualvm the activation of JMX gave me some challenges. Dr Google and my employers documentation quickly revealed some -D opts needed for JMX, but strangely it only worked for a Solaris 10 system (my setup: MacOS laptop monitoring SPARC Solaris based JVMs) On S11 with the same opts I saw that "my" JVM listening on port 3000 (which I chose for JMX), but visualvm was not able to get a connection. Finally I found out that at least my S11 installation needed an explicit setting of the RMI host name. This what finally worked:         -Dcom.sun.management.jmxremote=true \        -Dcom.sun.management.jmxremote.ssl=false \        -Dcom.sun.management.jmxremote.authenticate=false \        -Dcom.sun.management.jmxremote.port=3000 \        -Djava.rmi.server.hostname=s11name.us.oracle.com \ Maybe this post saves someone else the time I spent on research 

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• Is knowledge of hacking mechanisms required for an MMO?

  - by Gabe

  Say I was planning on, in the future (not now! There is alot I need to learn first) looking to participating in a group project that was going to make a massively multiplayer online game (mmo), and my job would be the networking portion. I'm not that familiar with network programming (I've read a very basic book on PHP, MYSQL and I messed around a bit with WAMP). In the course of my studying of PHP and MYSQL, should I look into hacking? Hacking as in port scanning, router hacking, etc. In MMOs people are always trying to cheat, bots and such, but the worst scenario would be having someone hack the databases. This is just my conception of this, I really don't know. I do however understand networking fairly well, like subnetting/ports/IP's (local/global)/etc. In your professional opinion, (If you understand the topic, enlighten me) Should I learn about these things in order to counter the possibility of this happening? Also, out of the things I mentioned (port scanning, router hacking) Is there anything else that pertains to hacking that I should look into? I'm not too familiar with the malicious/Security aspects of Networking. And a note: I'm not some kid trying to learn how to hack. I just want to learn as much as possible before I go to college, and I really need to know if I need to study this or not.

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• Configuring Transmission for faster download

  - by Luis Alvarado

  I have tested on the same PC with the same torrent/magnet links the following Torrent Clients: Transmission Ktorrent Deluge qBittorrent Vuze After 7 days of testing I noticed that the only one that took longer to start downloading and to keep an optimum/max download speed was Transmission. It was the slowest of them all to download the same torrents or magnet links which I tested 8 torrents and 4 magnet links from different sites and the one that took the most to start downloading or start after a pause/resume event. The other 4 just took less than 2 seconds for example to start downloading and to download the same content between 50% less time to 80% less time. I think that Transmission has the same capabilities about downloading/resuming than the other torrent clients but it may be because of some configuration I need to do to get the same speed and effect than the others. In my tests all torrent clients were tested with their default configurations. No changes were made. They were tested on the same PC, with the same network connection in the same time periods. So I am thinking that Transmission just needs a little bit of configuration tunning. I also set the ports for use to the same one for each. Checked the router for any blocking and anything related to the network. What options can I change to make it so Transmission resumes a download faster (grabs the seeds faster) and keeps a fast download all the time (Stays with the seeds that offer the best connection for example). Both of which by the look of it are features that the rest of the torrent clients do already.

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• CodePlex Daily Summary for Sunday, November 06, 2011

  CodePlex Daily Summary for Sunday, November 06, 2011Popular ReleasesSelf-Tracking Entity Generator for WPF and Silverlight: Self-Tracking Entity Generator v 0.9.9 Update 2: Self-Tracking Entity Generator v 0.9.9 for Entity Framework 4.0. No change to the self-tracking entity generator v 0.9.9. WPF sample (SchoolSample) is updated with unit testing for both ViewModel and Model classes.SubExtractor: Release 1020: Feature: added "baseline double quotes" character to selector box Feature: added option to save SRT files as ANSI Feature: made "Save Sup files to Source directory" apply to both Sup and Idx source files. Fix: removed SDH text (...) or ... that is split over 2 lines Fix: better decision-making in when to prefix a line with a '-' because SDH was removedAcDown????? - Anime&Comic Downloader: AcDown????? v3.6.1: ?? ● AcDown??????????、??????，??????????????????????，???????Acfun、Bilibili、???、???、???、Tucao.cc、SF???、?????80????，???????????、?????????。 ● AcDown???????????????????????????，???，???????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7 ????????????? ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)?.NET Framework 2.0???(x64)，?????"?????????"??? ??????????????，??????????： ??"AcDown?????"????????? ?? v3.6.1?? ??.hlv...Track Folder Changes: Track Folder Changes 1.1: Fixed exception when right-clicking the root nodeKinect Toolbox: Kinect Toolbox v1.1.0.2: This version adds support for the Kinect for Windows SDK beta 2.MapWindow 4: MapWindow GIS v4.8.6 - Final release - 32Bit: This is the final release of MapWindow v4.8. It has 4.8.6 as version number. This version has been thoroughly tested. If you do get an exception send the exception to us. Don't forget to include your e-mail address. Use the forums at http://www.mapwindow.org/phorum/ for questions. Please consider donating a small portion of the money you have saved by having free GIS tools: http://www.mapwindow.org/pages/donate.php What’s New in 4.8.6 (Final release) · A few minor issues have been fixed Wha...Kinect Mouse Cursor: Kinect Mouse Cursor 1.1: Updated for Kinect for Windows SDK v1.0 Beta 2!Coding4Fun Kinect Toolkit: Coding4Fun Kinect Toolkit 1.1: Updated for Kinect for Windows SDK v1.0 Beta 2!Async Executor: 1.0: Source code of the AsyncExecutorMedia Companion: MC 3.421b Weekly: Ensure .NET 4.0 Full Framework is installed. (Available from http://www.microsoft.com/download/en/details.aspx?id=17718) Ensure the NFO ID fix is applied when transitioning from versions prior to 3.416b. (Details here) TV Show Resolutions... Fix to show the season-specials.tbn when selecting an episode from season 00. Before, MC would try & load season00.tbn Fix for issue #197 - new show added by 'Manually Add Path' not being picked up. Also made non-visible the same thing in Root Folders...Nearforums - ASP.NET MVC forum engine: Nearforums v7.0: Version 7.0 of Nearforums, the ASP.NET MVC Forum Engine, containing new features: UI: Flexible layout to handle both list and table-like template layouts. Theming - Visual choice of themes: Deliver some templates on installation, export/import functionality, preview. Allow site owners to choose default list sort order for the forums. Forum latest activity. Visit the project Roadmap for more details. Webdeploy packages sha1 checksum: e6bb913e591543ab292a753d1a16cdb779488c10?????????? - ????????: All-In-One Code Framework ??? 2011-11-02: http://download.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1codechs&DownloadId=216140 ??????，11??，?????20????Microsoft OneCode Sample，????6?Program Language Sample，2?Windows Base Sample，2?GDI+ Sample，4?Internet Explorer Sample?6?ASP.NET Sample。?????????????。 ????，?????。http://i3.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1code&DownloadId=128165 Program Language CSImageFullScreenSlideShow VBImageFullScreenSlideShow CSDynamicallyBuildLambdaExpressionWithFie...Python Tools for Visual Studio: 1.1 Alpha: We’re pleased to announce the release of Python Tools for Visual Studio 1.1 Alpha. Python Tools for Visual Studio (PTVS) is an open-source plug-in for Visual Studio which supports programming with the Python programming language. This release includes new core IDE features, a couple of new sample libraries for interacting with Kinect and Excel, and many bug fixes for issues reported since the release of 1.0. For the core IDE features we’ve added many new features which improve the basic edit...BExplorer (Better Explorer): Better Explorer 2.0.0.631 Alpha: Changelog: Added: Some new functions in ribbon Added: Possibility to choose displayed columns Added: Basic Search Fixed: Some bugs after navigation Fixed: Attempt to fix slow navigation and slow start Known issues: - BreadcrumbBar fails on some situations - Basic search not work quite well in some situations Please if anyone find bugs be kind and report them at the Issue Tracker! Thanks!DotNetNuke® Community Edition: 05.06.04: Major Highlights Fixed issue with upgrades on systems that had upgraded the Telerik library to 6.0.0 Fixed issue with Razor Host upgrade to 5.6.3 The logic for module administration checks contains incorrect logic in 1 place, opening the possibility of a user with edit permissions gaining access to functionality they should not have through a particularly crafted url Security FixesBrowsers support the ability to remember common strings such as usernames/addresses etc. Code was adde...Terminals: Version 2.0 - Beta 3 Release: Beta 3 Refresh Dont forget to backup your config files BEFORE upgrading! The team has finally put the nail into the official release date for version 2.0. As bugs are winding down on the 2.0 Roadmap we decided to push out another build - the first 2.0 Beta build. Please take time to use and abuse this release. We left logging in place, and this is a debug build so be sure to submit your logs on each bug reported, and please do report all bugs! Check the source code page on the site, th...iTuner - The iTunes Companion: iTuner 1.4.4322: Added German (unverified, apologies if incorrect) Properly source invariant resources with correct resIDs Replaced obsolete lyric providers with working providers Fix Pseudolater to correctly morph every third char Fix null reference in CatalogBaseTumbleDeck: TumbleDeck 1.0.1 Alpha: New version of TumbleDeck is out! Check it out, it's great, we will be testing it and releasing more stable versions all the time. If you spot any unwanted bugs or features you want added please, please, please email us at tumbledeck@mail.com or contact us on the Discussions tab! If you can see your old version of TumbleDeck, please uninstall it and install this version again. Thanks.VidCoder: 1.2.1: Fixed a couple regressions: video encoder was blank in queue and crashes with the High Profile preset when opening the Settings window. Fixed problem with auto-update introduced in 1.2.0. If you have 1.2.0 you will need to update manually to get this.AssaultCube Reloaded: Release 2.3: THE RELEASE YOU'VE ALL BEEN WAITING FOR! IT CAN NOW BE CONSIDERED STABLE Linux has Debian 64-bit precompiled binaries, but you can compile your own as it also contains the source. If you are using Mac or other operating systems, download the Linux package. The server pack is ready for both Windows and Linux, but you might need to compile your own for linux (source included) If you are using Windows and require the source code, download the source package!New ProjectsApploft: Apploft is a new App Platform for windows allowing you to run apps based on powerful code which can pull content from Online.Bugshooting Output for Microsoft Dynamics CRM: Provides an output DLL to use with Bugshooting.Bulk Copy Test Cases Tool for Microsoft Test Manager & TFS: A while ago I had written a blog post Microsoft Test Manager Test Case Versioning on how to manage Test Cases over multiple releases which required you to manually copy test cases individually. I have created a tool to help with the bulk copying of Test Cases that updates the ItDiagnostics Tool for Microsoft Dynamics CRM 2011: Diagnostics Tool for Microsoft Dynamics CRM 2011 helps CRM developers and administrators to enable trace and devErrors on CRM server. It also generates an HTML report file with information about the CRM deployment.Ege University Renewable Energy Society: Ege University Renewable Energy Society Open Source Projectsfirst use of tfs: first project. connection to tfsFlagFtp: FlagFtp is a FTP library for .NET which supports various operations, such as retrieving file lists, write and read from/to files, retrieving file and directory infos, etc...LJCommon: LJCommonnwrole: .Net Worker RoleOrchard Mango Theme: Orchard Mango Theme is a simple inspired Microsoft Windows Phone OS. Original creator and designer Marco Siniscalco (http://www.marcosiniscalco.com)Project Rainbow: This is a school project from KAHO-SL in Belgium, ghent. although this is an open source site, we wish to ask not to copy or steal any of our code if you are related to our school and/or project.Rawler　-The Web scraping Framework using XAML: This is the Web scraping Framework using XAML .This framework makes Web scraping possible by only XAML. TenneySoftware Graphing Calculator: A 2D and 3D graphing calculator inspired by Analog's ZPlotter, utilizing my very own libraries to manage the 2D and 3D plotting. The article from Analog, an 8-bit Atari computer magazine from the 80's, can be located here: http://www.cyberroach.com/analog/an30/ZpltAn30.htmThe GINA bot: under constructionTime To Go: A little handy app that shows you how long you've got left until stuff.Windows Azure WordPress Accelerator: Accelerator to deploy WordPress in Windows AzureWP7 App site template: The WP7 App Site Template is intended to make it easier for Windows Phone 7 developers to market their apps. It's currently a simple one page site template, but any contributions/suggestions welcome.ZViewTV.NET: ZViewTV.NET est un programme de visualisation de flux audio-vidéo. Il a été créé par l'equipe qui à fait ZGuideTV.NET

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• How to indicate reliability when reporting availability of competencies

  - by Jan Doggen

  We have employees with competencies: Pete Welder Carpenter Melissa Carpenter Assume they both work 40 hours/week, and have not yet been assigned work. We need to report the availability of these competencies, expressed in hours. As far as I can see now, we can report this in two ways: Method A. When someone has multiple competencies, count them both. Welder 40 hours Carpenter 80 hours Method B. When someone has multiple competencies, count an equal division of hours for each Welder 20 hours Carpenter 60 hours Method A has our preference: - A good planner will know to plan the least available competency first. If 30 hours of welding is planned, we will be left with 10 welder, 50 carpenter. - Method B has the disadvantage that the planner thinks he cannot plan the job when 30 hours of welding is required. However, if we report this we would like to give an estimate of the reliability of the numbers for each competency, i.e. how much are these over-reported? In my example A, would I say that carpenter is 100% over-reported, or 50%, or maybe another number? How would I calculate this for large numbers of competencies? I'm sure we are not the first ones dealing with this, is there a 'usual' way of doing this in planning? Additionally: - Would there be an even better method than A or B? - Optionally, we also have an preference order of competencies (like: use him/her in this order), Pete could be 1. welder 2. carpenter. Does this introduce new options?

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• Dot Matrix printers setup...

  - by Parhs

  Hello! I am using debian which is similar to ubuntu. They have 7 dot matrix printers some very old like this one http://www.omnidatasys.net/product/desc_printer_ti880.htm which works from 1979 daily and at text is faster than many inkjects. I believe that it has his own language... Sending text to serial port (port server) prints garbage. However i think is prints only capital english up to 95 asccii and greek and the rest up to 127 i think greek capital.(special chip ) Sending english capital letters prints garbage i think but i amnt sure... i will try again... The other printer are ESC/P compatible and i use generic epson driver provided from ghostscript... However i think that sending text via lp -dpr1 filename It prints the text as a grafic...Changing from printer font face(courier,times roman etc) or pitch has no effect... I am wondering if is there any work arround for this? In AIX they claim that lp command printed output as text as it prints and cobol programs send raw text to to lp printers . However in AIX they use some custom filters for the printers and has more options for dot matrix printers.. I would like to know if there is a solution for this.. To avoid graphics mode for text and change font face somehow.. The most Straight-through approach would be to use no driver ,just send ESC/P from cobol but this requires too much work... Thank you again!

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• Report Books and Parameters with Telerik Reporting

  Telerik Reporting provides a simple, yet powerful, component called the ReportBook that allows multiple reports to be combined into one. Doing so makes displaying, printing, and exporting multiple reports a much simpler task for end users. Providing this type of functionality does leave one question though, "How are report parameters handled?" This entry will focus on providing the answers to that simple question. Click here to download the sample code so you can follow along. Creating a ReportBook ReportBooks are supported in all three environments the ReportViewer supports, WinForms, Silverlight, and ASP.NET. Adding a ReportBook to each of these environments is very similar. This example focuses on using a ReportBook with the WinForms ReportViewer. Create a WinForms Application Add a reference to the project containing the reports. Drag a ReportViewer from the ToolBox into the designer. Drag a ReportBook from the ToolBox into the designer. A dialog will be displayed asking for the reports to be included in the ReportBook....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Moving from Silverlight 4 Beta to RC - Part 2

  In my previous post I talked about updating my development environment from Silverlight 4 Beta to Silverlight 4 RC (release candidate). After updating, I opened the solution for my Task-It project and found that several things were broken. I would've been surprised if it just worked as is! What disappointed me is that after spending a decent amount of time searching the web, I could not find information telling me what I needed to update/change...and wouldn't it be nice if there was a wizard to update it for you? What changed? I wish I had made notes along the line of each of the things I found, but here are a few that I can recall: In the Web project, the following dll's no longer exist: System.Web.DomainServices.dll System.Web.DomainServices.LinqToSql.dll (if you are using the Entity Framework I believe that one is System.Web.DomainServices.EntityFramework.dll) System.Web.Ria.dll In the Silverlight project: System.Windows.Ria.dll I'm not positive which new assemblies need to be referenced for your project, but I'm going to list the ones I think you need. One way to verify is to create a new Silverlight application with support for WCF RIA Services and see which dlls are included. In the Web project: System.Data.Entity.dll System.ServiceModel.DomainServices.EntityFramework.dll (I've moved from LinqToSql to EntityFramework, so I'm not sure which one the LinqToSql stuff comes from) System.ServiceModel.DomainServices.Hosting.dll System.ServiceModel.DomainServices.Server.dll In the Silverlight project: System.ServiceModel.DomainServices.Client.dll System.ServiceModel.DomainServices.Client.Web.dll System.ServiceModel.Web.Extensions.dll Where are these dll's? These all live in either the Silverlight or RIA Services subdirectories under:         C:\Program Files\Microsoft SDKs Of if you are on a 64-bit machine like me:         C:\Program Files (x86)\Microsoft SDKs Wrap up Good luck, and I hope this helps to get you back in business! If anyone finds anything that I've missed, please enter a comment and I'll update the post accordingly.Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Building a Store Locator ASP.NET Application Using Google Maps API (Part 1)

  Over the past couple of months I've been working on a couple of projects that have used the free Google Maps API to add interactive maps and geocoding capabilities to ASP.NET websites. In a nutshell, the Google Maps API allow you to display maps on your website, to add markers onto the map, and to compute the latitude and longitude of an address, among many other tasks. With some Google Maps API experience under my belt, I decided it would be fun to implement a store locator feature and share it here on 4Guys. A store locator lets a visitor enter an address or postal code and then shows the nearby stores. Typically, store locators display the nearby stores on both a map and in a grid, along with the distance between the entered address and each store within the area. To see a store locator in action, check out the Wells Fargo store locator. This article is the first in a multi-part series that walks through how to add a store locator feature to your ASP.NET application. In this inaugural article, we'll build the database table to hold the store information. Next, we'll explore how to use the Google Maps API's geocoding feature to allow for flexible address entry and how to translate an address into latitude and longitude pairs. Armed with the latitude and longitude coordinates, we'll see how to retrieve nearby locations as well as how to compute the distance between the address entered by the visitor and the each nearby store. (A future installment will examine how to display a map showing the nearby stores.) Read on to learn more! Read More >Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Sql Server Prevent Saving Changes That Require Table to be Re-created

  When working with SQL Server Management studio, if you use the Design view of a table and attempt to make a change that will require the table to be dropped and re-added, you may receive an error message like this one: Saving changes is not permitted.  The changes you have made require the following tables to be dropped and re-created.  You have either made changes to a table that cant be re-created or enabled the option Prevent saving changes that require the table to be re-created. In truth, its quite likely that you didnt enable such an option, despite the error dialogs accusations, as it is enabled by default when you install SQL Management Studio.  You can learn more about the issue in the KB article, Error message when you try to save a table in SQL Server 2008: Saving changes is not permitted. Warning: As the above article states, it is not recommended that you turn off this option (at least not permanently), as it will ensure that you do not accidentally change the schema of a table such that data is lost.  Do so at your peril. The simplest way to bypass this error is to go into Option Designers and uncheck the option Prevent saving changes that require table re-creation.  See the screenshot below. The main reason why you will see this error is if you attempted to do any of the following to the table whose design you are saving: Change the Allow Nulls setting for a column Reorder columns Change any columns data type Add a new column The recommended workaround is to script out the changes to a SQL file and execute them by hand, or to simply write out your own T-SQL to make the changes. Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• How to disable "N" Wireless Mode RTL8192 (Thinkpad Edge 15 Core i5) in natty

  - by Gustavo Rubio

  I've seen many owners of thinkpad edges which are supossed to be linux-friendly having problems with wireless adapter. I've found several links inside askubuntu and in ubuntuforums which have a lot of work-arounds for those problems, mine seems to be wierd though. I use my laptop on both my office and at home. At home I have a router which is A/B/G and here at home the wireless connection works just fine, using a WEP key. But in work I have a B/G/N wireless router and it doesn't work, my guess is that this adapter works with N modes but somehow this is buggy in the bundled driver in natty. I've tried to disable the "N" mode in the router but that didn't work. Later I went to realtek website, downloaded their driver and compiled myself, kinda seems to work most of the time but sometimes some websites keep trying to load or load just parts of it and images start to look like their links are broken and so on, much like what you get when you were loading a page and suddenly the connection is lost. This problem, as I said, is only using the realtek driver from their website. Dmesg gives me this a lot of these: [ 5869.049454] rtl8192se_update_ratr_table: ratr_index=0 ratr_table=0x00000ff5 [ 5879.240563] DHCP pkt src port:68, dest port:67!! So I thougth I might as well switch back to the original driver which seems to work just fine on A/B/G wireless networks but not on N networks so if anybody knows how to disable that mode from within the driver please let us know :) Thanks in advance! PS: I do found a link to a similar question and it was answered but let me remind you I'm NOT using the intel version of wireless for my thinkpad but the realtek (RTL8192SvB)

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• Config import on network-manager-openvpn

  - by Toki Tahmid

  I'm trying to use a free service using the OpenVPN protocol using OpenVPN's GUI module in the network manager. The config worked perfectly well as .ovpn on Windows. The behavior in Windows is such that I ran OpenVPN GUI and chose to connect to this particular VPN. It would then show the activity in the attempt to connect and opens a dialog box for username/password authentication. I've successfully imported all the configurations by changing the file type to .conf and using the import feature in network manager. However, attempting to connect would simply display the network manager's attempting to connect animation, but ultimately end with a notification of connection timing out. No prompt asking for authentication would appear at all, nor can I find any feature to prefix the authentication details. client dev tun proto tcp remote miami.proxpn.com 443 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert client.crt key client.key cipher BF-CBC keysize 512 comp-lzo verb 4 mute 5 tun-mtu 1500 mssfix 1450 auth-user-pass reneg-sec 0 # If you are connecting through an # HTTP proxy to reach the actual OpenVPN # server, put the proxy server/IP and # port number here. See the man page # if your proxy server requires # authentication. ;http-proxy-retry # retry on connection failures ;http-proxy [proxy server] [proxy port #] Needless to say, but I've downloaded all the required packages for setting up OpenVPN connections. By the way, as you can see above, .key and .crt files location are specified to be in the same directory as the config file. After importing the config file, if were to remove them, would it cause any problem? Note, I haven't removed them, so the problem I'm facing is not due to the absence of these files.

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• Fix 403 errors in Google Webmaster Tools

  - by Justin

  Hi Team, I have a domain that has "fallen off a cliff" for searches in Google. Searches that used to be in position 1-4 are now gone from page 1. The same search in Bing shows the typical position expected (top 5 results). In reviewing Google Webmaster Tools, I am seeing two problems: 1. The Sitemap is reporting two errors: General HTTP error: HTTP 403 error (Forbidden) URLs not accessible However, the URL they provide as "no accessible" is accessible. I can click the link Google provides and it works fine. There are 6,000 crawl errors of type 403. Again, most of these pages that have 403 are accessible in my browser (tried various browsers as well). About half are from January, the other half from November. There are no IP-specific firewall rules on ports 80 and 443 that could block the goolgebot Using the user agent switcher add-on for FF I confirmed that the page loads when the user agent is the googlebot I an confirm that most of the pages reported as 403 are accessible. A search of just "site:thedomain.com" does confirm there are over 9,000 in the index. But most searches don't return the site. I believe the 403 issues are the cause of the fall in search rankings, but I can't seem to find any information online with ideas about how to address this. Any ideas? jpe

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• Problem with SANE and CardScan

  - by TiuTalk

  I have a CardScan 60 II device and installed SANE in my Ubuntu 10.10 laptop. The problem is I can't make scanimage find the device. Quote: $ sudo sane-find-scanner # sane-find-scanner will now attempt to detect your scanner. If the # result is different from what you expected, first make sure your # scanner is powered up and properly connected to your computer. # No SCSI scanners found. If you expected something different, make sure that # you have loaded a kernel SCSI driver for your SCSI adapter. found USB scanner (vendor=0x08f0 [Corex Technologies Corporation], product=0x1000 [Corex CardScan 60], chip=LM9832/3) at libusb:006:002 # Your USB scanner was (probably) detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. # Not checking for parallel port scanners. # Most Scanners connected to the parallel port or other proprietary ports # can't be detected by this program. But I can't find the device: $ sudo scanimage -L No scanners were identified. If you were expecting something different, check that the scanner is plugged in, turned on and detected by the sane-find-scanner tool (if appropriate). Please read the documentation which came with this software (README, FAQ, manpages).

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• BizTalk 2009 - The Community ODBC Adapter: Receive Location

  - by Stuart Brierley

  I have previously talked about the installation of the Community ODBC adapter and also using the ODBC adapter to generate schemas.  But what about creating a receive location? An ODBC receive location will periodically poll the configured database using the stored procedure or SQL string defined in your request schema. If you need to, begin by adding a new receive port to your BizTalk configuration. Create a new receive location and select to use the ODBC adapter and click Address. You will now be shown the ODBC Community Adapter Transport properties window.  Select connection string and you will be shown the Choose data Source window.  If you have already created the Test Database source when generating a schema from ODBC this will be shown (if not go and take a look in my previous post to see how this is done).   You will then need to choose the SQL command that will be run by the recieve port.  In this case I have deployed the Test Mapping schemas that I created previously and selected the Request schema. You should now have populated the appropriate properties for the ODBC Com Adapter. Finally set the standard receive location properties and your ODBC receive location is now ready.

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• Slow to sync music files?

  - by pst007x

  I have created a folder in the Ubuntu One sync folder and called it music. I have added various albums and the folder has started to sync. However the files were added back in October and still only the folders have synced and no music files. I tested this service before and added a single music file directly into the Ubuntu One folder (no sub folders) and within a few days it synced, however it seems anything in sub folders seem to stall or take a very long time. My ubuntu One program always says syncing and the progression bar creeps, but still no files synced. I know there are issues with speed but a month and going to sync? I recently tested the same files with Dropbox and it took 9 hours. I have port forwarded the https (443) port both in the software firewall and in my router, I tried disabling both firewalls too, either way it makes no difference. I have also tried both from home and the office on different Ubuntu systems. Is there anything anyone has done to improve this service? I am trying to integrate Ubuntu One service into the office to share project files but the syncing is taking to long. I am using the latest Ubuntu 10.10 (fully updated, fresh install), I love Ubuntu and wish to continue to support it anyway I can, so a solution would be good :-) Any help would be appreciated. Thanks Paul

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• What types of programming contest problems are there?

  - by Alex

  Basically, I want to make a great reference for use with programming contests that would have all of the algorithms that I can put together that I would need during a contest as well as sample useage for the code. I'm planning on making this into a sort of book that I could print off and take with me to competitions. I would like to do this rather than simply bringing other books (such as Algorithms books) because I think that I will learn a lot more by going over all of the algorithms myself as well as I would know exactly what I have in the book, making it more efficient to have and use. So, I've been doing research to determine what types of programming problems and algorithms are common on contests, and the only thing I can really find is this (which I have seen referenced a few times): Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems seen at the IOI. Here they are: Dynamic Programming Greedy Complete Search Flood Fill Shortest Path Recursive Search Techniques Minimum Spanning Tree Knapsack Computational Geometry Network Flow Eulerian Path Two-Dimensional Convex Hull BigNums Heuristic Search Approximate Search Ad Hoc Problems The most challenging problems are Combination Problems which involve a loop (combinations, subsets, etc.) around one of the above algorithms - or even a loop of one algorithm with another inside it. These seem extraordinarily tricky to get right, even though conceptually they are ``obvious''. Now that's good and all, but that study was conducted in 1999, which was 13 years ago! One thing I know is that there are no BigNums problems any more (as Java has a BigInteger class, they have stopped making those problems). So, I'm wondering if anyone knows of any more recent studies of the types of problems that may be seen in a programming contest? Or what the most helpful algorithms on contests would be?

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• Orthographic unit translation mismatch on grid (e.g. 64 pixels translates incorrectly)

  - by Justin Van Horne

  I am looking for some insight into a small problem with unit translations on a grid. Setup 512x448 window 64x64 grid gl_Position = projection * world * position; projection is defined by ortho(-w/2.0f, w/2.0f, -h/2.0f, h/2.0f); This is a textbook orthogonal projection function. world is defined by a fixed camera position at (0, 0) position is defined by the sprite's position. Problem In the screenshot below (1:1 scaling) the grid spacing is 64x64 and I am drawing the unit at (64, 64), however the unit draws roughly ~10px in the wrong position. I've tried uniform window dimensions to prevent any distortion on the pixel size, but now I am a bit lost in the proper way in providing a 1:1 pixel-to-world-unit projection. Anyhow, here are some quick images to aide in the problem. I decided to super-impose a bunch of the sprites at what the engine believes is 64x offsets. When this seemed off place, I went about and did the base case of 1 unit. Which seemed to line up as expected. The yellow shows a 1px difference in the movement. Vertices It would appear that the vertices going into the vertex shader are correct. For example, in reference to the first image the data looks like this in the VBO: x y x y ---------------------------- tl | 0.0 24.0 64.0 24.0 bl | 0.0 0.0 -> 64.0 0.0 tr | 16.0 0.0 80.0 0.0 br | 16.0 24.0 80.0 24.0 With that said, all I am left to believe is that I am munging up my actual projection. So, I am looking for any insight into maintaining the 1:1 pixel-to-world-unit projection.

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• Cloning existing software for commercial purposes - legal implications

  - by user2036256

  I have been asked to clone some existing software for a company. Basically its an old 16 bit DOS console app, which was supplied free of charge in I believe the late 80's. Having replaced the machine that needs to run it with a box running Win7 x64 they can't get it to work. It crashes every couple of minutes under DOSbox. The company that supplied it appears to no longer exist - if they did the company asking me to do this would almost certainly know about it. Its undetermined whether they have gone entirely or are just trading under a different name. If the latter they seem to have withdrawn from the market related to this product (because again, niche area, we should know about everyone there). What is the status to this with regards to copyright etc.? The main concern for the company involved is they want an identical interface to what they already have so I would have to clone this entirely. Having no source code / indication of the underlying mechanisms these would be written from scratch. Is an interface covered by copyright? / Does that still hold 30 years later? What is the assumed license when none at all is provided? Under UK law would I be under any serious risk were I to take on the project? How would this pan out if I then decided to sell the software on to other companies? Thanks

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• CEO Taken Captive in His Own Factory?

  - by Stephen Slade

  Last Friday was no ordinary day for Chip Starnes, the 42 year old factory owner of Specialty Medical Supplies in China. He recently announced movement of some of the production of their diabetes testing equipment from Beijing to Mumbai India.  Of the 110 employees at the facility, about 80 protested by blocking the doors and refusing to let Chip Starnes out of the facility.  He has been trapped in his office several days now.  The employees think the factory was closing but Mr. Starnes said it was not. Mis-information? Poor communications? Work-stoppage. This is a good example of supply chain disruption. Parked cars are blocking the entrance to the facility, front gates are chained close, the CEO a prisoner in his own factory. Chip Starnes was presented with documents to sign in Chinese indicating he would pay severance and other demands he did not understand, possibly bankrupting the company.    If you depend on supply from China and other foreign suppliers, how reliable are your sources? For example how are the shopfloor employee relations? Is it possible to predict these types of HR risks and plan around them? What are your contingencies? It's important to ask the right questions and hear good answers. Having tools in place to rapidly evaluate, assess and react to these disruptions are the keys to survival. Hear how leading organizations are reinforcing their supply chains and mitigating risk through technology with Oracle's latest release of Oracle Supply Chain Management. Source: WSJ pg.B1, June 25, 2013

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• DIY Homemade Hybrid Rocket Engine [Video]

  - by Jason Fitzpatrick

  Remember the guy with the cool DIY astronaut ice cream build? He’s back with a mini hybrid rocket engine that runs off oxygen and acrylic. I built a small rocket engine for demonstration purposes. The engine is built from a 2″ diameter acrylic rod through which I drilled a 0.5″ hole. The oxygen at 80 psi or less is passed through the hole and then is forced through a convergent-divergent nozzle at the tail end. The nozzle’s throat is about 0.25″ and expands to 0.625″. I lit the engine by inserting a burning cotton swab (with wooden stick) while a small amount of oxygen was flowing. The acrylic catches fire very easily in a pure oxygen environment. The engine can be throttled and shut off completely, which is a major benefit to hybrid engine designs. Solid-fuel rockets cannot be throttled or shut off, which makes them difficult to control. [via Make] HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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• UPDATE MANAGER UNABLE TO UPDATE

  - by muguro

  Requires installation of untrusted packages The action would require the installation of packages from not authenticated sources. i get this error every time i try updating. the system shows that it has 466 updates but fails after clicking update more details have this accountsservice apparmor apport apport-gtk apt apt-transport-https apt-utils aptdaemon aptdaemon-data at-spi2-core bamfdaemon base-files bcmwl-kernel-source bind9-host compiz compiz-core compiz-gnome compiz-plugins-default cron cups cups-bsd cups-client cups-common cups-filters cups-ppdc dbus dbus-x11 dconf-gsettings-backend dconf-service desktop-file-utils dmsetup dnsutils empathy empathy-common eog evince evince-common evolution-data-server evolution-data-server-common firefox firefox-globalmenu firefox-gnome-support firefox-locale-en fontconfig fontconfig-config fonts-liberation fonts-opensymbol foomatic-filters gcalctool gdb ghostscript ghostscript-cups ghostscript-x ginn gir1.2-atspi-2.0 gir1.2-dbusmenu-glib-0.4 gir1.2-dbusmenu-gtk-0.4 gir1.2-gst-plugins-base-0.10 gir1.2-gtk-3.0 gir1.2-gtksource-3.0 gir1.2-gudev-1.0 gir1.2-javascriptcoregtk-3.0 gir1.2-launchpad-integration-3.0 gir1.2-pango-1.0 gir1.2-rb-3.0 gir1.2-totem-1.0 gir1.2-ubuntuoneui-3.0 gir1.2-unity-5.0 gir1.2-webkit-3.0 glib-networking glib-networking-common glib-networking-services gnome-accessibility-themes gnome-control-center gnome-control-center-data gnome-desktop3-data gnome-games-data gnome-icon-theme gnome-media gnome-orca gnome-settings-daemon gnome-sudoku gnomine gnupg google-talkplugin gpgv grub-common grub-pc grub-pc-bin grub2-common gstreamer0.10-alsa gstreamer0.10-plugins-base gstreamer0.10-plugins-base-apps gstreamer0.10-x gvfs gvfs-backends gvfs-bin gvfs-common gvfs-daemons gvfs-fuse gvfs-libs gwibber gwibber-service gwibber-service-facebook gwibber-service-identica gwibber-service-twitter hdparm hplip hplip-data indicator-sound initscripts isc-dhcp-client isc-dhcp-common jockey-common jockey-gtk krb5-locales landscape-client-ui-install language-pack-en language-pack-en-base language-pack-gnome-en language-pack-gnome-en-base launchpad-integration libaccountsservice0 libapt-inst1.4 libapt-pkg4.12 libart-2.0-2 libasound2 libatspi2.0-0 libbamf0 libbamf3-0 libbind9-80 libc-bin libc-dev-bin libc6 libc6-dev libcairo-gobject2 libcairo2

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