What is wrong with my tax return that it keeps getting rejected?

[CassieLO]

If your return is rejected,

1. Check your email. Look for an ACTION NEEDED! email from turbotax@intuit.com and follow the instructions.
2. Search for a solution. Do a search of the reject message or code for instructions on how to fix it.
3. Open and fix your return.
4. Re-file your return.

Note: If you get the same rejection a second time (or third, or fourth, or fifth...) and you see no mistakes on your return, select the file by mail option to paper-file your return. Sometimes, returns keep getting rejected even though there's nothing wrong with them (data mismatches, dependents already claimed, and so forth).

In these cases, we recommend paper-filing by mail rather than wasting additional time trying to "fix" something that is beyond your control.

https://ttlc.intuit.com/questions/1901491-how-do-i-fix-a-rejected-return