When you launch a Mac application that you use regularly and it either won’t start, or never starts at all, you’ll be frustrated. If you’re lucky, this is a one-time occurrence. You can force quit the app and try again, hopefully with success.
How to Fix App Not Opening Issue on Mac – Complete Guide
If the app still won’t launch, there are several solutions you can use to fix the issue why your Mac suddenly can’t open the application.
Whatever the reason, there are several possible solutions to this problem, ranging from simple to complex.
Restart your Mac. It’s always smart to start with the simplest solution possible.