How to fix SP1 Silverlight theme damage

If you see this,

Error

Then for each theme, navigate to this folder.

C:\Users\YourUsername\AppData\Local\Microsoft\VisualStudio\10.0\Extensions\Microsoft\Silverlight Business Application (theme name)\1.6\~PC\ProjectTemplates\CSharp\Silverlight\t.zip

Rename BusinessApplication.Web to BA.Web

Yep, that’s all. You don’t even need to restart VS2010.