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Occasionally, when deploying SharePoint Solutions (WSP) directly from Visual Studio, you will receive the following error. Error occurred in deployment step 'Add Solution': A feature with ID {Guid} has already been installed in this farm. Use the force attribute to explicitly re-install the feature. This error occurs when you have a previously defined feature installed, as part of the same solution, which will trigger the error. To overcome this issue, you can open the feature (double-click) which is part of your actual project, and you will see the properties window come into focus. In this window, you will see details, such as title, description, scope, items in the feature. In the property window, you'll see an option titled 'Always Force Install'. By default, this item is set to "false". If you set this option to "true", it will over-write the feature each time the project is installed. SharePoint Stack Exchange

On occasion, a web part may be causing your SharePoint pages to throw an unexpected error. An unexpected error has occurred. Web Parts Maintenance Page: If you have permission, you can use this page to temporarily close Web Parts or remove personal settings. For more information, contact your site administrator. Troubleshoot issues with Microsoft SharePoint Foundation. In addition to leveraging the ULS Logs , to investigate the Correlation ID, you can append " ?contents=1 " to your page URL. This will allow you to close web parts, restore defaults to web parts, or delete web parts from your page.

When creating an XNA game, and the application produces the following error, your video card does not support the current version of DirectX. In this case, the requirement is video card support for pixel shader 4.0 . No suitable graphics card found. Could not find a Direct3D device that supports the XNA Framework HiDef profile. Verify that a suitable graphics device is installed. Make sure the desktop is not locked, and that no other application is running in full screen mode. Avoid running under Remote Desktop or as a Windows service. Check the display properties to make sure hardware acceleration is set to Full. If your video card does not support pixel shader 4.0 , you can toggle the game profile, from HiDef to Reach . To modify this, go to project properties , XNA Game Studio , and toggle the radio button, Use Reach to access a limited API set supported by Windows Phone, Xbox 360, and Windows.

If you've ever installed .NET Framework 4.0 (version 4.0.30319) and enabling the Internet Information Services (IIS) Manager, and encounter the following error when trying to visit the web page you are trying to deploy: Handler "PageHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler" in its module list. This error is caused due to a glitch in the installation of .NET Framework 4.0. To fix, simply open the run dialog on your system and run the following commands. On 32-bit System: %windir%\Microsoft.NET\Framework\v4.0.30319\SetupCache\Client\setup.exe /repair /x86 /x64 /ia64 /parameterfolder Client /q /norestart On 64-bit System: %windir%\Microsoft.NET\Framework64\v4.0.30319\SetupCache\Client\setup.exe /repair /x86 /x64 /ia64 /parameterfolder Client /q /norestart The .NET Framework 4.0 installation will be repaired, and after a few minutes make another attempt to browser your page. The repair will happen silently, in the background...