Hello, Proseries sent the below notification. When I read the notification at first, I understood the return was rejected because the dependent listed on the return has already been claimed by someone else. However, as I continue reading, it appears that it was the taxpayer who has already been claimed as dependent. Can someone help me to understand the rejection notice please. Thank you! 

I filed a return for a young taxpayer who is claiming her young daughter as dependent. 

Description: *****(/efile:Return/efile:ReturnHeader/efile:Filer[1]/efile:PrimarySSN)

Error Detail:
If there are dependents provided on the return, then the Primary SSN in the Return Header must not be the same as a Dependent SSN on a previously accepted return for the same tax period.
Error Resolution:
This return has been rejected by the IRS because the taxpayer has been listed as a dependent on another tax return. Verify that the taxpayer's Social Security Number has been entered correctly.

If the taxpayer has been listed as a dependent on another tax return for the current tax year, no dependents can be claimed on this return. In order to file electronically, the dependents must be removed from this return.

If you feel that this reject has been received in error, and you do not want to remove the dependents from this return, you may print and file by mail.