Why won’t Logic Pro 11 open up

Thanks for your question.

Is this followed by a message stating 'Logic Pro Quit Unexpectedly' or something similar? If so, may I suggest attempting the following?

1. Copy the Logic Pro application to your Desktop
2. Delete Logic Pro from your Applications folder
3. Attempt to launch Logic Pro from your Desktop

Let me know how that goes.

Best,

Jas

What Logic version do you use exactly?

What macos, what computer model.

Try to disable "open using Rosetta".