Solved problem, I was able to start preparing CA return, will see if I can e-file later. My problem was I first installed TTtax2019 Deluxe on a second hard drive (E:). I later uninstalled it and installed it anew on the C: drive instead. The TTax installer left the state forms on the E: drive and keeps wanting to download state again at the State Return stage of navigation, which it says it successfully did, but would not start the state return.
I tried to uninstall TTax in Windows and ran the "Repair Installation" option in TTax installer. That didn't fix the state problem.
On a long shot, I copied the "cai_19" folder and everything under it from the E: drive to the C: drive into the...\TurboTax\Deluex 2019\Forms\ folder. Your folder path may vary.
Beware, I don't know what this solution could do to your TTax installation, so caveat emptor!
