Unity Error case regarding com.unity.collab-proxy@1.8.0

Library/PackageCache/com.unity.collab-proxy@1.8.0/Editor/Collaborate/Collab/Presenters/CollabHistoryPresenter.cs(21,9): error CS0246: The type or namespace name 'BuildAccess' could not be found (are you missing a using directive or an assembly reference?)

 

https://forum.unity.com/threads/unity-collaborate-1-8-0-broke-my-project.1165088/

Unity Collaborate 1.8.0 Broke My Project

 

Solution 

Hey all, I'm very sorry for the confusion and issues you all are experiencing!

The Version Control (formerly Collaborate) package has a bit of a confusing versioning convention after v1.5.0. Due to restrictions we had from the Package Manager team on how we could version our package, we needed to support both 2019 and 2020+ versions of the Editor in the same major version (1.x).

However, the Collaborate window is different between 2019 and 2020+. 2019 uses the original Collab Toolbar WebView while 2020+ uses the Collaborate Window built using UIElements. This means that 2019 and 2020+ versions of the Editor require different versions of the package to compile.

For 2019 versions of the Editor, please use v1.6.0, v1.8.0, and subsequent Version Control versions with an even-numbered minor version.

For 2020+ versions of the Editor, please use v1.7.1, v1.9.0, and subsequent Version Control versions with an odd-numbered minor version.

We will continue this naming convention until 2019 long term support ends. When that happens, we will announce when all later versions of the Version Control package will support all supported versions of the Editor. Again, we're very sorry for the confusion!