I have a fairly big FP SDK application developped since 5.06 which I have upgraded without any issue up to 5.10, simply by updating the references to the RAB bin.
I have just done it to upgrade to 5.12 and got the application to fail at launch, not able to create my view with:
system.Reflection.TargetInvocationException
can not find method ABB.Robotics.Dcl.Jogging.CreateDclJogging().
Note that my code has not been changed at all.
This is a fairly hot topic as the delivery is for end of the week.
It seems that one of the methods you reference to is not there anymore. What it is funny is that the reported error belongs to a DLLs which does not belong to the FP SDK
could you email me a copy of your dlls? (the ones you are creating)