I checked all the requirements. I was FINALLY able to get the TurboTaxPremier to open by COMPLETELY uninstalling it (using a commercial product to find all the related files) and reinstalled it. One user on a community discussion page recommended ignoring the window that popped up after I reinstalled it reporting an error. The first time I attempted this I clicked on the send error report to TurboTax and the program shut down. This time I ignored it and the program installed updates and opened properly.
There is definitely a problem with TurboTax 2019 for Mac. I have never experienced this with other versions. And yes, I checked all my privacy settings before contacting the support number.
