This is a general problem of mac, if the software you want to install is not downloaded from Applestore.
We are trying to fix this. In the meanwhile, here you have a solution for sucessfuly install the GPRO apps in mac PC or laptop
Place the app in Applications of our macPC and then run the following command from the terminal
xattr -cr /Applications/AppName.app
Then go to the info.plist file within contents of the app and substitute line 35 which show a -> character by the following
This should work