Unable to change site definition

[rlreddick]

I'm on a Mac 10.15.3 (Catalina) running CC 2020, and to my dismay the Manage Sites dialog box / window is not available. I define new sites all I want, but if I want to change something about a site already defined, I cannot get the Manage Sites dialog to appear. How do I fix this?

[Nancy OShea]

Did you uninstall old CC software before you upgraded to Catalina and then perform a clean install of CC as recommended? 

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

Try Restore Preferences.

https://helpx.adobe.com/dreamweaver/kb/restore-preferences-dreamweaver.html

[rlreddick]

Before Catalina I was running CS6

[Nancy OShea]

You didn't answer my question.

Did you uninstall old 32-bit software BEFORE installing Catalina?

If not, you may have problems until you manually get rid of them.