Yes, it's the solution I suggest if anyone has that problem but apparently it doesn't work for everyone.
Sometimes you need to go to system preferences --> Security and privacy. There will be a message saying [application] was blocked from use because it is not from an identified developer, and then you press the "Open Anyway" button and the app will open. Thats one case that can fix it. The video below is also a case that can happen and the solution to it.