The Add-in 'SQL Source Control 3' failed to load or caused an exception. Would you like to remove this Add-in? If you choose yes, the file it was loaded from 'C:\\ProgramData\\Microsoft\\SQL Server Management Studio\\11.0\\\\Addins\\RedGate.SQL SourceControl.SSMSUI.2012.addin', will be renamed.
Error Message: The system cannot find the file specified.
Error number: 80070002
I removed the product and reinstalled it, but that does not help. I also tried the option renaming the folder C:\\Users\\youruserprofile\\AppData\\Local\\Red Gate\\SQL Source Control 3 but even that does not seem to fix it.
I have the exact same problem with SSMS 2008 R2.