The error window states it requires AI v. 18.0 - 18.9. I am running v18.1.1.
The first error I found was an entry on the Creative Cloud app stating "The Add-on Creative Cloud Libraries installation failed because it is incompatible with installed... " The message concluded saying to "click here" which actually led nowhere. This message appeared the day I converted my LR to the CC version - that project appeared to complete successfully.
The puzzle is enriched as thereis a Libraries Panel visible and functioning in my AI right now despite the error message.
Suggestions?