StevoCJ is on the right track in using suceeding rules.  Here's an approach I use in blackpearl without writing any custom code. First, I create a process-level variable in the sub-process to contain the result.  Let's call it something like ''SubProcessResult''.  When the sub process is done, I'll put a value in this field, say ...

I have never seen that particular error.  However, I do have a tip for speeding up your deployment time.  When you have a large project with several processes and smartobjects, you can right-click in the solution explorer on the items you are not currently working on and click ''Exclude from build''.  Just remember to go back ...