One of the most general errors you will encounter in TCC is the dreaded SAX parsing error.  It happens often and gives you no clue as to what went wrong.

SAXerror

The way to get it to give you the details of the error is to go into the post processing tab of the config file and uncheck the ‘Fail on export error’ checkbox.  While this won’t fix the error it will now return the error (more specifically the field that’s causing the error) in the response file.

UncheckFailOnError