Windows update installed this patch automatically, now the source code fails to build in either Visual Studio or the publish.bat files.
I assume that some projects have explicitly specified v4.0.0.0 and are thus using the 'lib' version included in the github source code and other projects are just pulling whichever version is in the gac. This mismatch causes the compilation to fail.
Microsoft issued a patch to MVC 4 that took it's version number up from v4.0.0.0 to v4.0.0.1 https://support.microsoft.com/kb/2993928
Windows update installed this patch automatically, now the source code fails to build in either Visual Studio or the publish.bat files.
I assume that some projects have explicitly specified v4.0.0.0 and are thus using the 'lib' version included in the github source code and other projects are just pulling whichever version is in the gac. This mismatch causes the compilation to fail.