If you are using Creative Cloud here’s how I got fixed, with help from the Adobe team.
1: Uninstalled all Adobe applications
2: Manual uninstalled any remaining Adobe files, as advised by the Adobe team. The key files are: Manual Uninstallation of Adobe Creative application ********* Mac ********* ~ Files / Folders ~ /Applications/Adobe* /Applications/.AdobePatchFiles (hidden, use Go > Go to Folder command) /Applications/Utilities/Adobe* /Library/Application Support/Adobe* /Library/Application Support/FLEXnet Publisher/ /Library/Preferences/com.adobe* /Library/Preferences/FLEXnet Publisher/ /Users/[user]/Library/Application Support/Adobe* /Users/[user]/Library/Caches/Adobe* /Users/[user]/Library/Caches/com.adobe* /Users/[user]/Library/Preferences/Adobe* /Users/[user]/Library/Preferences/com.adobe*
After uninstalling everything I then reinstalled the creative cloud desktop application. Then Adobe DW. and then Adobe Ext manager. When I opened both DW and EM. DW was still not recognised. I closed them went into Creative Cloud.> Preferences.> Logout. When I logged back in Creative Cloud then recognised the installation, run an update for EM. Everything was then up and running OK.
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