I've been trying to upgrade from November 2017 to November 2019 for about a week now, and I'm not that familiar with Qlik. I have also tried June 2018 thinking I was trying to jump to far - same problem. I have searched for the strings in the Troubleshooting blog and they do not exist. The last log before the rollback logs start is the November 2017 log which does include "Exception. Message: The type initializer for '<Module>' threw an exception." I've attached both of these logs, can someone give me a clue where to look?