Sometimes the re-downloading approach doesn’t work, and sometimes downloading an app directly from a developer or a trusted source is not an option, and sometimes you have to download certain apps from third party sites (particularly with antiquated apps that have become abandonware). Often simply re-downloading the app, trashing the ‘damaged’ version, then relaunching the freshly downloaded copy will resolve this error message. The first thing you should do to try and remedy the “app damaged” error message is to re-download the app to the Mac, and make sure it comes from a trusted source.įor example if you are downloading Google Chrome or Signal, make sure you download those apps directly from the developer website only, do not download them from third party sites. Note if you are seeing a similar but different error message with Mac App Store apps, use this troubleshooting guide instead. Re-downloading the app, rebooting the Mac, installing system software updates, and using the command line are covered here.

There are a few different tips and tricks that can remedy these ‘app damaged’ error messages on the Mac. How to Fix App Damaged and Can’t Be Opened Errors on Mac This article will offer a few ways to remedy this error message on the Mac.

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