This version ( of Google Drive is outdated. Please download the latest version to continue.

Google Drive on Desktop for macOS was prompting me this message and then quitting, over and over. I ended up moving the app to the trash, reinstalling, and signing in again to get it working. Strangely, the version I downloaded ended up being (which is older than v48) and the Google Drive for desktop release notes only mentions v47 released in April. Weird.

I hope this helps someone else in the same situation.