If you did not receive Unemployment and had no other form of taxable income, you cannot e-file, nor will the program provide a form with all zeroes on it. You would not need to file at all and it would not benefit you to do so.
You can go here and print the 1040 for free and mail it in if you really want to.
https://www.irs.gov/pub/irs-pdf/f1040.pdf
If you had other income you wanted to report, please tell us what it was or why you want to file a return.
