You could also be getting this error message for your state identification expiration date or issuance date, as well. Please make sure all dates are entered in the format in which TurboTax shows.
Example:
If the format shows MM/DD/YYYY you would enter month, followed by the day, and then the four digit year.
If the format shows DD/MM/YYYY, you would enter the day, followed by the month, and then the four digit year.