Your Mac has software installed on it that's known to be incompatible with your new macOS version. An app might not open, run, or install, even if you try to reinstall it. If an app doesn't work after you upgrade your Mac operating system, check for updates.Īfter you upgrade macOS, you might find that some third-party apps don't work or act as you expect. If an app won't run or install on your Mac after you upgrade macOS Take a look here for some information about issues related to opening apps after updating: I'll be happy to shed some light on this. Thanks for reaching out about the issue you're having with opening an app since updating to macOS Mojave.
