Oh are you trying to download the program to prepare a 2019 return? Sorry you can't install it on a Chromebook. You need a full Windows or Mac computer. If you can't install it ask for a refund.
Window System Requirements
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-...
Mac System Requirements
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-...
