1040-US ELF: Error Code F1040-011-01

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Error Code F1040-011-01: Form 1040, Line 6c(2), each 'DependentSSN' provided must be unique among all the dependent SSNs in Line 6c(2).

One of the social security numbers listed for one or more of the dependents is duplicated. Each dependent must have a unique SSN. Correct the social security number as applicable to the dependent(s) in order to electronically file the return.

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