Importing complete tutorial project gives cs0122 errors?

I’m just trying to download the Roll-A-Ball tutorial from the Asset Store or the Learn tab when starting Unity. I am able to download and import everything just fine, however it comes with 48 errors and 3 warnings. All the errors are in the folder: “C:/Users/Austin/AppData/Local/Unity/cache/packages/packages.unity.com/com.unity.collab-proxy@1.2.15/Editor/Collab/”.

The first error I see says:
C:/Users/Austin/AppData/Local/Unity/cache/packages/packages.unity.com/com.unity.collab-proxy@1.2.15/Editor/Collab/CollabHistoryWindow.cs(20,56): error CS0122: `UnityEditor.Collaboration.ICollabHistoryWindow’ is inaccessible due to its protection level

I am not trying to collaborate with this project, I simply want to try out some new things I am learning with a complete project instead of a brand new one. I downloaded a fresh version of Unity 2018.2.3, which is what my school uses, however this made no changes to the errors I get once the complete game is imported. I found the files and tried to make sense of the errors but it is way beyond what I know. Any ideas would appreciated on how to get rid of these errors so I can play and ultimately add to this Roll-A-Ball game.

Update since yesterday: I was doing all that on my Windows 10 partition. Back on my Mac OS with the same Unity 18.2.3, I started a new project and imported the same Roll-A-Ball tutorial and it works just fine without any errors or warnings. I can’t figure out why it works with one and not the other. My current Mac OS causes 18.2.3 to be very buggy so I’m unable to do the work on it, I will need my Windows partition’s Unity 18.2.3 to work with the imported tutorial. Also something I didn’t mention in the original post is that I tried the Tanks tutorial as well and it gave me pretty much the same errors. Back on my Windows 10 partition I just copied the files over to a new project and they work as intented so the problem must be in the download process somewhere.