We have released a minor update to Gallio and MbUnit v3.0.4 to resolve a problem that occurs when a user creates a partial copy of Gallio which is missing certain required plug-in assemblies. Gallio will now silently disable those plug-ins.
If you plan to copy Gallio and MbUnit into your source tree then you may benefit from this update. Without it you may observe a "ConfigurationErrorsException" due to the Visual Studio plug-in's dependency on the GAC. (Of course, you could just delete the Visual Studio plug-in from your source tree since it will not do anything useful in there anyway.)
Download Link: Gallio Downloads