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
I had the same Problem (i.e. the same error code Error: 0x1 ...).
The issue was with some of the libraries referenced from a missing folder.
Removing the references and adding them back from the correct path fixed the issue.
The Microsoft Reference (https://msdn.microsoft.com/en-us/library/ms345164.aspx) related to the Error code is very generic and doesn't help you much. However, reading other articles it is quite likely it indicates an unknown failure reason to run the Script Task.