forms rejected

[sciteksrvcs]

tax return rejected because a value was not valid. Doesn't say what value they question. I don't see anything that is incorrect. How do I correct form if I don't know what the error is?

[SweetieJean]

Please quote the exact rejection message/code?

[sciteksrvcs]

all the email said was:

Return/ReturnData/IRS1040ScheduleC/TravelAmt - Data in the return is missing or invalid. Please double check your entries.

it says:

Once you've opened your return in TurboTax, the details about what needs updating will be displayed.

From there we can walk you through making the updates you need and help you e-file your return. If it isn't possible to e-file your updated return, we'll make sure you have everything you need to print and file your tax return by mail.

Turbotax told me nothing. I spent hours going through my Sch C and changed whatever I thought might be wrong. it was accepted, so I changed the error, but still don't know what the problem was.