Go back to your unemployment section of your Federal return and double check the entries for boxes 10a, 10b, and 11. 

Since you said there was a state ID number on your form, that would be entered into box 10b.  However, if boxes 10a (dropdown for your state name) and 11 are not also filled in, there will be an error condition.  Either all must be filled in or all must be blank.  

This worked! Thank you so much!

Thank you so much!!  That is correct and a big failure in TurboTax - this has been an error for more than one year and they should fix it!!!!

I tried this and it didn't work. I've tried upper case and lower case. I still have the error. It's stopped me in my tracks!!!

@jchelak 

Some folks have found out...when they check again, that they either missed a form, or screwed up some digit in those ID numbers.

ALL Forms that have a UTAH ID number...that means not only W-2 forms, but 1099-R forms, Unemployment 1099-G forms, W-2G forms would be most common..

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Still no go...delete each of those forms and enter them again manually.

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or call Customer Support...though I'm not sure they can do anything:

https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632

CHANGING WTH TO LOWERCASE WORKED, THANK YOU!!!