Error 251 Unknown build error, 'Method 'get_Command' in type 'System.Windows.Controls.Primitives.RepeatButton' from assembly 'PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not have an implementation. Line 1 Position 340.'
I upgraded from .net 4 to .net 4.5.2 in a WPF application and now all the pages are throwing the error above. I have tried to perform a clean, close the application, then reopen and build but no go. Also ensured that the version that the PresentationFramework is pointing to is 4.5.2. Actual version number is: 4.0.30319.34211
Anyone deal with this before?