I added Xceed Extended WPF Toolkit via Nuget and I get a "A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll" which when I looked into it, found that it was looking for Xceed.Wpf.Toolkit.Luna.
Everything seems to work without this assembly.
Comments: ** Comment from web user: emartin **
Everything seems to work without this assembly.
Comments: ** Comment from web user: emartin **
In v2.0, I've made some changes to the code that will hopefully fix that issue.
I could not reproduce the issue, so this is a pure guess.
You are encouraged to describe your environment and the step to __re__-produce the issue. Unfortunately, many people that once felt on this issue fix the problem by clearing and recompiling.