I have the same problem while working in Lightroom Classic CC I get a pop up notification, that there is an update available. I am on version 7.0. But when I go to the Adobe Creative Cloud portal there is no update available.
I thought the Creative Cloud was supposed to automatically update your software so you are always on the latest version ?
What version of the OS are you running?
MacOS requirements for Lightroom Classic version 8:
Operating system macOS 10.12 (Sierra), macOS 10.13 (High Sierra), or macOS 10.14 (Mojave)
So, if you're still running El Capitan (10.11), you'll need to upgrade to at least 10.12.
“When you go to the Creative Cloud Portal”?
By that do you mean when you launch the Adobe Creative Cloud Desktop application? And you select the Apps tab, it list no updates, and shows your applications as up to date?
goto the link that jisephlevine provided
Note, that solution 5, actually refers to uninstalling and reinstalling Adobe Creative Cloud Desktop App, not the actual programs like PS or LR, that’s the affected app.
give josepflavine credit when this works