Error Messages on Compile

I am teaching a Gaming Animation high school class but have no unity experience (I was a coder, mostly COBOL, for 30 years before becoming a teacher). One of my students is getting errors at compile time that have exceeded my abilities to debug. We’re using the 2020 version of unity on windows 10.

These are the errors:


I googled the errors, but she is not using the “override” keyword in any of her methods (she’s never even heard of it.) Her code was working up until Friday.

I’m attaching her code. I hope someone can help.

Thank you.

8149652–1058552–PlayerMovement.cs (1.96 KB)
8149652–1058555–PlayerLife.cs (824 Bytes)
8149652–1058558–ItemCollecter.cs (499 Bytes)
8149652–1058561–CameraControl.cs (327 Bytes)

Perhaps something related to this?

Extra unwanted packages in new projects (collab, testing, rider and other junk):

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: