I had the same issue as you. I submitted my daughter's taxes and forgot to check the box that says, "someone else can claim you as a dependent". When I submitted my tax return through Turbot Tax e-file it was rejected with code IND-517-02. I amended hers and resubmitted it, it was accepted by IRS. I then resubmitted mine and it was again rejected. I spoke with someone at IRS they said the system doesn't look at any amended returns. She said I could possibly use the IP PIN and resubmit it. I looked back at Turbo Tax (desktop version) and one of the sections/notifications when I was going back to the "help me fix" sections, it said if I still wanted to submit my return through e-file anyway after the rejection, to log into my account at IRS and request an IP PIN. I used this PIN and entered it in the personal "other" section in Turbo Tax. I did that, resubmitted it and both federal and state were accepted. I did not have to mail them. Yay!
