Visual Studio 2010 error: Type universe cannot resolve assembly

Posted by dthrasher on Stack Overflow See other posts from Stack Overflow or by dthrasher
Published on 2010-06-17T03:50:58Z Indexed on 2010/06/17 3:53 UTC
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I've loaded a WPF project initially created in Visual Studio 2008 into Visual Studio 2010. The conversion process goes smoothly, but on certain XAML files the VS2010 designer throws several errors related to project references, including this one:

System.Reflection.Adds.UnresolvedAssemblyException

Type universe cannot resolve assembly: GalaSoft.MvvmLight, Version=3.0.0.31869, Culture=neutral, PublicKeyToken=3e875cdb3903c512.

This assembly reference works just fine in the Expression Blend 4 designer, but not in VS2010.

I can build and run the solution successfully.

My solution targets the .Net Framework 3.5 SP1.

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