"the submission was a duplicate of one that was received"

[zzzz4]

just called them. they haven't received anything from my SSN number.

[CatinaT1]

Thank you for doing that. We are still looking into this.

[VolvoGirl]

The rest of that screen shot says you can't file state w/o a federal return.  Are you trying to efile federal and state now?  Or did you say to mail the federal?    I would try going back through the Review tab and see if federal has any errors.  Then go though File again.  

Or it could be someone else accidentally used your ssn for a dependent on their return.  Are you married or claiming any dependents?  

[zzzz4]

yes, the issue is with my federal return. when i try to file federal return only it says the same duplicate message. the federal return doesn't have any errors (checked that tab).

there's no one who would have claimed me as a dependent.

[VolvoGirl]

I'm not saying you are claimed on someone's return.  But that someone might have typed their own ssn or their dependent's ssn wrong and typed yours by mistake.