Windows Phone Application Project Type Not Available in VS2010

Question

I recently had to reinstall the OS in my dev block, and now I'm moving on to reinstalling various applications. I previously installed the WP7 SDK without any problems, but unfortunately this time I have problems. The only type of project that I have in the Silverlight category for Windows Phone is the one I downloaded from the online template section.

When I try to open it or any of the WP7 projects that I created earlier, I get "The project type is not supported by this installation." error. I'm not sure what I am missing. I followed the three steps listed here , so I installed the SDK, Dev tools, and Dev Tools. Installing VS2010 by itself seems fine, as I can build ASP.NET and Silverlight applications and run them without problems.

Has anyone come across something like this before?

Edit: I installed Service Pack 1 for VS 2010, but this has not helped yet.

Edit: I also reinstalled the Windows Phone Dev development tools, and this installation did not report errors, but I still do not get projects in the Silverlight category for Windows Phone.

Answer 1

I gratefully resolved this. Last night I uninstalled everything and reinstalled it again, but this time I right-clicked on each executable file and selected "Run as administrator". This seems to have done the trick, as my existing WP7 projects compile and work successfully, and I can create new ones. However, I came across two error messages -

• "Zune software does not start. Try again to make sure that Zune software is running." First I went around this by setting a target on the Windows Phone 7 emulator instead of the Windows Phone 7 Device in the dropdown list of goals on the main toolbar.
• "Error: Connection failed due to invalid command line arguments." I circumvented this by rebooting, mentioning here .

Answer 2

Try to open the command line of the visual studio and enter:

devenv / ResetSkipPkgs