Local Root folder does not exist - macOS

[janc43648611]

Huge problem on Dreamweaver CC 2021 on macOS:
Cannot declare anything as rootsite.
“The local root folder, project, does not exist. Please select a new local root folder by clicking in the Manage Sites button.”
Then I declare project as root folder in “Manage Sites”. When I open again, I get the same message.

File vault status: is not used.

[Nancy OShea]

1. Does your local site folder reside on your primary hard drive, not a networked or cloud drive?

2. Do you have administrative permissions to read/write files to that volume?  If not, refer to the Apple support link below.

https://support.apple.com/guide/mac-help/change-permissions-for-files-folders-or-disks-mchlp1203/mac

[Ben M]

Did you try this KB article?

https://helpx.adobe.com/dreamweaver/kb/error-local-root-folder-exist.html