This return has been rejected by the IRS, because a dependent on this return has filed their own tax return without indicating they would be claimed as a dependent. The dependent's Social Security number (SSN) cannot be used on two separate tax returns, without that indication.
If multiple dependents are present in this return, review the Description field. There will be a number in brackets, [?], that identifies which dependent is causing this reject. For example: "[2]" will identify the second dependent from the top. Verify that the dependent's information has been entered accurately. Correct any misspellings, omissions, or transpositions. Make sure the dependent SSN is entered correctly.
If you want to electronically file this return and claim the dependent, an Identity Protection PIN will be required.