The project type is not supported by this installation Error – VS 2008 and SilverLight

If you have installed some version of VS 2008 and then discovered that the existing SilverLight projects do not open, you are not alone. Here are 2 things one can try –:

• Close VS. Open the Visual Studio 2008 command prompt. Give the command devenv /setup. This command takes some time to complete. This command actually resets the VS environment. Once complete, open VS and check if SilverLight projects open.
• Try out this MSDN blog which suggests installing a patch for SilverLight Tools for VS 2008.

 

Best of Luck :).