I spoke with a TT agent the morning actually pointed me in right direction to solve what I think is related to this problem. I'm using TT Deluxe.
After e-filing my return (containing 2 Sch. Cs) on Feb. 22, my return was rejected with the error
"an xml document that represents a binary attachment must have a valid reference to an attached file" and suggested updating my TT on several days later. After updating and refiling the return was rejected again with the same error message and now suggesting updating the program on March 8.
Not very helpful. Something didn't smell right so I called customer service. The agent suggested it might be an issue with form 7206, self-employed health insurance.
Going to the forms side (not the interview) on TT I found that there were two 7206 forms in the return, one for each Sch. C. One of these has the correct numbers for the health insurance expenses. The other, connected to the other Sch. C was empty. I rightfully deleted this 7206 since that business wasn't used for health insurance premiums. I again e-filed the return and in a short while it had been accepted. YAY!
I hope this helps someone.
