Question

I recently had to reinstall the OS on my dev box and I am now in the process of reinstalling various applications. I had previously installed the WP7 SDK without any problems but unfortunately I’m having problems this time around. The only project type I have available in the Silverlight for Windows Phone category is one that I downloaded from the online templates section.

When I try to open it or any of the WP7 projects I created previously I get a “The project type is not supported by this installation.” error. I am not sure what I am missing. I have followed the three steps listed here so I’ve installed the SDK, the Dev Tools and the Dev Tools fix. The installation of VS2010 itself seems to be fine as I can create ASP.NET and Silverlight applications and run them without any problems.

Has anyone encountered something like this before?

Edit: I have installed Service Pack 1 for VS 2010 but that hasn’t helped unfortunately.

Edit: I have also re-installed the Windows Phone Dev Tools and that installation reported no errors but I still get no projects under the Silverlight for Windows Phone category.

Answer 1

I have thankfully resolved this. Last night I uninstalled everything and reinstalled again but this time I made sure to right-click on each executable and select “Run as administrator”. That seems to have done the trick as my existing WP7 projects are compiling and running successfully and I can create new ones too. I did run into two error messages however –

1. “Zune software is not launched. Retry after making sure that Zune software is launched”. I got around this initially by setting the target to Windows Phone 7 Emulator instead of Windows Phone 7 Device in the target dropdown on the main toolbar.
2. “Error: Connection failed because of invalid command-line arguments.” I got around this by rebooting as mentioned here.