Close all Creative Cloud background processes from Activity monitor.
To see detailed instructions, see Terminate the process in macOS.
Getting error 1 or 1001 when installing or updating the Creative Cloud desktop app on macOS v10.10 or v10.11? Use the download links specific to your error.
When installing or updating the Creative Cloud desktop app on macOS v10.10 or v10.11, you might get the error 1 or error 1001. Error 1 occurs when the Creative Cloud desktop app fails to install on a new device. Error 1001 occurs when the Creative Cloud desktop app fails to update to a new version.
Follow the given steps to fix these errors.
Download the given installer.
Double click the downloaded file to mount its contents.
Double click Install.app from the mounted folder.
The Creative Cloud desktop app begins to install. It launches itself when the installation is complete.