Build for Windows App Store

[Joshua_Quick]

Right.  You need to check on the “Silverlight Development Kit”.

This is needed because our CoronaCards project template creates a Silverlight WP8 app, not a universal app.  Those 2 types of apps very different.  A Silverlight app compiles to a *.xap file and uses Microsoft’s Silverlight UI framework.  A universal app compiles to a *.appx file and uses the WinRT XAML component UI framework.  They’re not compatible.  At the moment, it’s recommended to make Silverlight apps because Windows Phone 8.0 devices do not support universal apps and there are still a lot of 8.0 devices in the market.

[sysads]

@Joshua\_Quick

Right.  You need to check on the “Silverlight Development Kit”.

This is needed because our CoronaCards project template creates a Silverlight WP8 app, not a universal app.  Those 2 types of apps very different.  A Silverlight app compiles to a *.xap file and uses Microsoft’s Silverlight UI framework.  A universal app compiles to a *.appx file and uses the WinRT XAML component UI framework.  They’re not compatible.  At the moment, it’s recommended to make Silverlight apps because Windows Phone 8.0 devices do not support universal apps and there are still a lot of 8.0 devices in the market.

Installed it that but same error

[Joshua_Quick]

Have you tried one of Microsoft’s WP8 Silverlight project templates like I suggested above?

The point is to verify that your Visual Studio installation is or isn’t corrupted.