Error: Object reference not set to an instance of an object or Invalid source file
Scenario
Error messages
Object reference not set to an instance of an object.
Invalid source file.
Cause
You may get these errors when failing to select an answer from a drop-down selection or intermediary information not completed when the file's being lodged by an intermediary. .
Solution
Ensure selections are made in drop-down fields and that intermediary information's completed.