I’m guessing that’s part of advertising so if you don’t need it, remove it.
Otherwise, make sure all packages are up to date and that they resolved fully, perhaps try a reimport-all.
Here’s more reading:
Extra unwanted packages in new projects (collab, testing, rider and other junk):
Upgrades:
If you need packages and they’re not working, one easy solution is to make a new project, add the packages there until they work, then copy the Packages/manifest.json
file to your current project. This obviously assumes you are using source control and can instantly back out any and all changes!!
New project:
About the fastest way I have found to make a project and avoid all this noise is to create the project, then as soon as you see the files appear, FORCE-STOP (hard-kill) Unity (with the Activity Manager or Task Manager), then go hand-edit the Packages/manifest.json file as outlined in the above post, then reopen Unity.
Sometimes the package system gets borked from all this unnecessary churn and requires the package cache to be cleared: