By the sounds of your post, you did not have any state tax taken out, so you would use the 1st step.
Leave the box for state tax blank, make sure to take out your state, make sure that the payor id is blank and take out whatever amount is in box 16 and that will clear your error.
If you had state tax taken out, put in the amount that was taken out for the state tax, put in your state and then put in your gross wages in box 16.
Any box that has nothing in it from your 1099-R or your W2, do not put in a 0, just leave it blank.
