So that is most definitely now the fix for this problem.  

1. I was doing exactly that and still got the error. 

2. All other QBWC1013 troubleshooting i could find online was not helpful. 

3. the logging on this problem is terrible. Can't open quickbooks is fine for the error but there is no reason as to why listed.  Intuit needs to log more information to determine why.  I only stumbled onto the solution because I ran out of things to try.