I have installed the beta on an iMac (2 years old) as well as laptop, both using Sierra. Runs fine on the laptop. But on the iMac, I launched it successfully, tried to add a Github account before opening any project, and it crashed. Subsequently, unable to launch Xcode beta at all - starts up and crashes immediately. Reinstallation did not change this.
Are there configuration files that I may have corrupted by trying to set up Git account before doing anything else? Files that I should simply erase and then reinstall the beta?
Complication is that I am using version 8.3.3 on real project (which is on GitHub) and would prefer not to mess up settings in that environment.
Thanks.