Fixing Mac App Store problems

Most of the time, installing from the Mac App Store works smoothly. But sometimes installing an application just does not work. Below a few things to try out that sometimes help.

Remove existing application

If an application with the same bundle id is already present, installing the application from the App Store can fail. This can happen for example, when you have used a demo version of the application. You like it, so you buy it, but then it won't install!

If you have an application similar to the one from the App Store, delete it. Don't just put it in the trash, empty the trash as well. Then try installing again.

Sign Out

Another thing to try is to sign out from the App Store. Then restart your Mac, open App Store, sign in. And then try installing again.

More Tips

The things to try above have worked for me in the past. If you have another solution that worked for you, please let me know if you would like to see it added here.