How to resolve an error viewing project properties in VS 2005 beta 2


If you have had Visual Studio 2005 beta 1 installed and then removed it and installed VS 2005 beta 2, you may see an error like this when you try to set project properties in the VS IDE:


VS project property error


This can be resolved by running the VS 2005 beta cleanup tool.


The root cause of this issue is the issue I describe in this blog item.  The VS 2005 beta 1 version of the assembly named Microsoft.VisualStudio.Shell.Interop.8.0.dll is being orphaned in the GAC after beta 1 is uninstalled.  Then beta 2 installs a copy of the same assembly to a different location because the ProcessorArchitecture value for this assembly was changed between beta 1 and beta 2.  For some reason the VS IDE loads the old version from the GAC even if the newer one is present.


 

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