Unable to launch a few apps with the following pop-up ("XXX app” is damaged and can’t be opened. ...)

Hi Kenneth Humphries1,

Welcome to Apple Support Communities. We understand that you're having issues with a couple apps on your Mac. We'd like to help.

What happens when you delete these apps and redownload them again? Do you continue to get the same error message?

How about if you try to open these apps in safe mode? Are you then able to open these apps? How to use safe mode on your Mac

Let us know how that goes.

Take care!

When you migrated these apps over from your older mac it would have migrated the apps with their associated files.

The associated files probably had information imbedded which tied them to the other mac and therefore gave you the

errors experienced.

I wouldn't use Migration Assistant for importing apps to your mac, best to use it for importing your own personal data and then just installing the apps afresh on the new mac, and setting the mac up yourself.

You also said you deleted the apps and reinstalled them but that did not work.

Some apps can be easily deleted from the Applications folder and reinstalled and they should work.

Some apps though install files throughout the mac and then need an uninstaller usually provided by the software developer

which would remove these files, if you had only deleted the app from the Applications folder and not used the uninstaller

this could explain why the apps would not launch.

When booting to Safe Mode the mac runs disk repairs and clears out caches and user caches, clearing out the caches probably allowed your mac to be free from the residual information from your older mac.