Get your taxes done using TurboTax

This is the same error message I received.  The error loop continues regardless of the fixes attempted.  I had to print and file both my federal and state returns by mail.  I could not e-file federal or state - one user indicated they were able to e-file federal and mail in state return but I was not able to do that workaround.  The same issue happened last year.  Extremely frustrating to deal with this issue two years in a row.