What this means is that the driver's license or state ID info you
entered on the Illinois e-file agreement doesn't match what's on file
with the Illinois Department of Revenue for the first person listed on
the return.
You can either correct your Illinois driver's
license/state ID information, or use a different signature verification
method on your Illinois return. Follow the link to get instructions on
how to fix the rejection:
https://ttlc.intuit.com/questions/2204977-e-file-rejection-error-il1040-8600-2-primary-taxpayer-driv...
