Open Installer and accept the terms and then install program. Please download Adobe Support Advisor to detect the problem.” Quit the popup window then right click on Install select Show Package Contents -> Contents -> MacOS -> Open New Terminal -> Drag the Install in side MacOS and drop into Terminal -> The Adobe Installer will start automatically. Extract the zip file using WinRAR or WinZip or by default macOS command. I thought maybe I needed to download the latest version of Adobe Illustrator, but after I downloaded the installer and unzipped it, it does the same.
The icon allows the double click and then nothing happens.
Whether you are a graphic designer, photographer, illustrator. I tried to open my copy of Adobe Illustrator today while running Mac OS 10.15.5, and the progam did not even start.