You receive this when you run a full "Compile into .Net Framework CIL", together with "CIL generation: The given key was not present in the dictionary.".
If this is the case, you have option A) that is run a complete AOT compile. However, this is too much time consuming and you could try a shortcut: look at the generation log (the path can be found in this post) and you will see something like:
Finished pass 1 at 7/24/2012 2:24:38 PM
Error when loading the method. Type: ProjTable, Method: initValue
System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
The CIL generator found errors and could not save the new assembly.
So, just compile the objects in case and give it another try ... the CIL should be generating now.