If you must use a third-party source, always verify the MD5 or SHA-256 checksum if available. Troubleshooting Compatibility Issues
If you need an older version for compatibility: download older version of apple configurator 2
with the Apple ID used to originally download Apple Configurator 2. Navigate to your Apple Configurator 2 and click the download icon. If compatible, a prompt will appear: If you must use a third-party source, always
Wait for the download. Install as usual. download older version of apple configurator 2
Apple has a "Last Compatible Version" feature hidden in the Mac App Store. If you have ever "purchased" (downloaded) Apple Configurator 2 in the past with your Apple ID, follow these steps: on your older Mac. Sign in with the Apple ID you used previously.