“Runtime error Exception has been thrown by the target of an invocation” from Script task

Question

I have a SSIS package with a script task, I get the following error when i try to run it in my local system. It works fine for my collegues as well as in production. However

Answer 1

I got this error message when I referred to a passed ssis variable in Dts.Variables["User::xxxx].Value(); where xxxx did not exist and was not passed from the calling program. It was a simple Console.Writeline referring to a passed variable that didn't exist.