I am running OS 11.5.1 – I was able to install 12.2 with no issues
When I double-click the ADMBTerminal.app in the dmg I get a message saying: “ADMBTerminal.app” is damaged and can’t be opened.
This issue is not fixed by changing the Security and Privacy setting to allow Apps from Anywhere nor do I get an option to Open Anyway.
I was able to fix the issue and run ADMB 12.3 by executing this line in the Terminal:
xattr -cr /path/to/ADMBTerminal.app
Quantitative Fisheries Center
Department of Fisheries and Wildlife
Michigan State University
375 Wilson Rd., UPLA Room 100C
East Lansing, MI 48824