That code indicates that the second dependent claimed on your return filed their own return without indicating they could be claimed as a dependent. This cannot be fixed with the TurboTax tools
To resolve this rejection, verify that the dependent's name and SSN match those on their Social Security card, and correct the entries on the Dependent Worksheet as needed. To e-file your return and claim this dependent, you must obtain an IP-PIN for them and include it on the Dependent Worksheet.
Otherwise, you can e-file by deleting this dependent from your return. How that would affect your taxes is unknown.
If you wish to continue claiming this dependent, you can request an IP PIN for them if they don't have one already by registering and validating their identity. Please visit www.irs.gov/getanippin for further information and resubmit your return with their IP PIN. A new one will be issued each year and will need to be updated on your and the dependent's return. To avoid the IP-PIN, you can paper-file and add an explanation of why you are paper-filing with this dependent.
In any case, this dependent needs to file an amended return indicating that they may be claimed as a dependent on someone else's return, even if you decide not to claim them.
