Created Issue: opening MimeParser.sln indicates MimeParser.vsmdi requires a conversion from a previous format [16055]

Thank you for MimeParser.

Opening MimeParser.sln (in Visual Studio 2010) produces the dialog:

[ Convert Files from a Previous Format ]
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The following file or files were created in an earlier version of Visual Studio. These files must be converted to the current format in order for the test project 'MimeParser.MbTest' to load:
C:\codeplex\mimeparser\MimeParser.vsmdi

[ OK ] [ Cancel ]

I expected that the sln would have all files converted already.

Thank you.