brainCloud Space Shooter not working in Unity 2019.3.2f1

[dev.permutations]

New to brainCloud here.

I'm attempting to follow the official brainCloud tutorial on youtube (Space Shooter). After downloading the package and importing it, I get a lot of errors around the UI portion.

As it stands the example doesn't work, in Unity 2019.3.2f1 (and I'm assuming later). Is there a post that explains how to fix it?

Here are some errors

I was able to eliminate some of the errors such as
"Library\PackageCache\com.unity.package-manager-ui@2.0.3\Editor\Sources\UI\Common\UIUtils.cs(1,32): error CS0234: The type or namespace name 'UIElements' does not exist in the namespace 'UnityEngine.Experimental' (are you missing an assembly reference?)"
by removing the "experimental" portion, but what follows is a mess I don't want to navigate with fun errors such as

Library\PackageCache\com.unity.package-manager-ui@2.0.3\Editor\Sources\UI\PackageManagerWindow.cs(28,18): error CS1061: 'PackageManagerWindow' does not contain a definition for 'GetRootVisualContainer' and no accessible extension method 'GetRootVisualContainer' accepting a first argument of type 'PackageManagerWindow' could be found (are you missing a using directive or an assembly reference?)

and

Library\PackageCache\com.unity.package-manager-ui@2.0.3\Editor\Sources\Services\Common\Resources.cs(16,99): error CS0121: The call is ambiguous between the following methods or properties: 'VisualTreeAsset.CloneTree(string)' and 'VisualTreeAsset.CloneTree(VisualElement)'

Your product looks very useful, I would appreciate some help getting it up and running. Thank you