Have you filled out TP-348-V? Do you have T3/RL-16?

There could be two reasons that you are getting this error.
TP-228 is a form for moving expenses. We might be missing TP-348-V, which must accompany it.
Missing T3: montantP7 is federal. Information on how to amend, cancel, add, or replace T3 slips

Amending, cancelling, adding, or replacing T3 slips - Canada.ca

Hope this helps!

Thank you for choosing TurboTax,

Hey, thanks for the info, yes, TP348-V is completed and attached when I go to print the return. 

I don't have any T3's or income of that nature that would require a T3. 

Please double check the TP348-V, and if you have a mover's name, make sure it doesn't contain any characters that are not numbers or letters.

If you are still not able to resolve this issue, please contact our phone support team for more assistance.