Many times this error is caused by a missing/incorrect state ID number in box 15. If your state is UT be sure the "wth" at the end is all lower cased. If the state ID is missing on your form (other than UT) then you can use the federal ID number without any dashes.
You can also verify if there is an amount in box 17 (state income tax) there should also be an amount in box 16 (state wages). You can use the federal wages from box 1 if needed.
Finally, if there is no amount in box 17 indicating nothing was withheld then delete (trashcan) the state line completely. Your resident state will use the amount from box 1 to determine any state tax owed.
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