Not allowing e-filing of state return because "The return has withholding from a source other than..." It DOES have a 593, but nothing else. What's up?

Your California real estate withholding has to be entered on both the state and the federal return.

First, complete your state return. When you reach Take a look at California credits and taxes, select Start next to Real Estate Withholding. Complete this section to answer your information.

Second, go back to your federal return.

1. Select Federal then, Deductions & Credits.
2. On the next screen, select I'll choose what I work on.
   1. Skip this step if you go directly to Your tax breaks.
3. Scroll down to Estimates and Other Taxes Paid, and select Start or Revisit next to Income taxes paid.
4. On About income taxes paid, select Yes.
5. On the next screen, select Start next to Withholding not already entered on a W-2 or 1099.
6. Enter your real estate withholding information under State withholdings and select Continue when finished.
7. Return to your California state return, going all the way to the end. Enter your real estate withholding information again.

The withholding information will show up on your CA state return on Form 540 line 73 for real estate withholding and not on line 71 as income tax withholding.

This does not answer my question regarding not being able to e-file. Been there, done that.