Dreamweaver still not opening on Mac

[DesertDIngo]

Just downloaded Dreamweaver 2020 as part of Creative Cloud. On a MacBook running 10.15.3. Using ClamX virus scanning. Any insight into why it won't load. As per previous comments, the icon bounces, then stops bouncing. 

Then I get this:

[Nancy OShea]

DW 2020 is indeed compatible with Catalina with these known issues.

https://helpx.adobe.com/dreamweaver/kb/known-issues-macos-Catalina.html

• Did you restart your computer after installing DW?
• Does your computer user profile have administrative level permissions?
• Do you need to create an exception for DW in your anti-virus app?

[DesertDIngo · Accepted solution]

I actually downgraded to an earlier version of Dreamweaver via Creative Cloud, deleted the newest version. Then, when I launched the slightly outdated version, I updated it. That worked.

[colorguru@hoz]

This is happening to me as well. I've deleted all older versions, including preference files. I'm on Mac OS 10.13.6, there is no anti-virus running. I cannot install anything except the one version offered in Creative Cloud, version 20.1. I've uninstalled and reinstalled, tired re-starts and shut-downs, nothing is working. HELP! I need this app to work! (We're paying for the complete suite, hence, we should have access to the complete suite...)

[Nancy OShea]

"I cannot install anything except the one version offered in Creative Cloud, version 20.1"

Dreamweaver 20.1 is the current release version.  Which version are you looking for?

Owing to a policy change last year, Adobe no longer offers pre-2019 versions from the CC Desktop App.  If you didn't keep older versions on your system, they are no longer accessible.  

Enterprise/Teams plan holders can request older versions from their IT dept admins, providing it doesn't violate internal policies.

https://appleinsider.com/articles/19/05/13/adobe-warning-of-legal-problems-if-users-keep-using-old-v...