This is the most searched scenario: "How to install Adobe Illustrator CC 2020 on Mac pre top" often refers to preparing for newer, unsupported Macs.

| Error Message | Cause | Mac-Specific Fix | |----------------|-------|------------------| | “Setup cannot continue because file is damaged” | Corrupted DMG or Gatekeeper | Run sudo spctl --master-disable, then run xattr -cr /Volumes/Illustrator/Setup.app | | “Error code 182” | Incompatible macOS version | Use macOS Catalina VM (see Part 3) | | “This app needs to be updated…” | macOS newer than Catalina | Apply the “CC 2020 patcher” or use Retroactive (retroactive.store) | | “Failed to launch: License expired” | Validation server block failure | Edit /etc/hosts with: 0.0.0.0 adobe-license-panel.adobe.io | | “Application not responding on Monterey+” | Rosetta 2 graphics bug | Launch with open -a Illustrator --args -disable-gpu via Terminal |

Before you start, ensure your Mac meets the system requirements for Adobe Illustrator CC 2020: