Thanks for the reply.  My question wasn't whether 8.6 is compatible with Unity 2019.2, but if 2019.2+ is a requirement.  What I found was that in Unity 2018.4.* you can add Vuforia as a module during install, and access it directly from within Unity.  Installing the package linked below, however, fails.  The package does work with Unity 2019.2+.   If a certain version of Unity is required, which may be the case here, that should probably be mentioned on the page about the package install. 

Hi,

Yes, 8.6 is compatible with 2019.2+

Thank you.

Vuforia Engine Support

I was able to import the package but it fails.  Error message below.  This is the case regardless of whether I import the package via script, or manually.   I now get this error when launching any other projects.   Do I need to upgrade to Unity 2019.2? 

An error occurred while resolving packages:

  Package com.ptc.vuforia.engine@file:/Users/[username]/[Project name]/Packages/com.ptc.vuforia.engine has invalid dependencies:

    com.unity.ugui: Package [com.unity.ugui@1.0.0] cannot be found

A re-import of the project may be required to fix the issue or a manual modification of /Users/[username]/[Project name]/Packages/manifest.json file

Hi,

Yes or if you want to import via Unity, Asset -> Import Package-> Custom Package (Select it from Finder)

Thank you.

Vuforia Engine Support

From those instructions:  "The easiest way to do this is to import an editor script into your Unity project."   I'm brand new to Unity.  How do I import the script I just downloaded?  I was hoping for a little more of a step-by-step. 

Edit:  Oh, I guess I can just double-click on the script in the Finder and it runs in Unity.  

Hi,

The new version 8.6 contains additional steps to install:

Please review below article: https://library.vuforia.com/content/vuforia-library/en/articles/Solution/vuforia-engine-package-hosting-for-unity.html

Thank you.

Vuforia Engine Support