I ran into the same issue and spent 2 days trying to figure out why it won't let me e-file. I filed for standard deductions for Home Office. For some reason at the time when adding that deduction in, Turbotax created a new line showing the standard deduction, AND also created an empty line with no information. So when you look at it, it may seem like you only have one Office Deduction, but there's actually (2) and you can tell because of the garbage can icon where you can select to delete the empty input. the empty line makes Turbo Tax thinks you have two offices and there's some stipulation about needing two forms, etc. etc. which is what triggered the error.
Once I deleted the empty line that was created by default under Office Deductions, it worked and I was able to e-file.
Hope this helps those in the same boat.
