I am currently using 2018.2.6f1 Personal version. This version number is a requirement due to forced infrastructure This has been tested on two machines, both with the exact same results after each test. Initially after clicking Download->Start in the Unity Hub for any one of the tutorials (Part 01 was tested first) The project will load, but there is immediately an error shown at the bottom of the editor that states: "Assets/Content/tutorials/Editor/TutorialWindowMenuItem.cs(9,32): error CS0246: The type or namespace name `TutorialWindow' could not be found. Are you missing an assembly reference?" Going into the script in question, it shows that there is an error on the "Using Unity.InteractiveTutorials;" line At this point after some Googling I began trying a number of possibilities: 1) Closed and reopened the tutorial: FAIL 2) Reset the packages via Help->Reset packages to default: This caused a ton of missing namespace errors, including 9 missing InteractiveTutorials namespace references and one to IPlayerAvatar (So...FAIL) 3) Deleted the .unitypackage file from C:\Users\userName\AppData\Roaming\Unity\Asset Store-5.x\Unity Technologies, then redownloaded the Tutorial: FAIL 4) Uninstalled/Reinstalled Unity completely: FAIL If anyone has a suggestion, I would be very appreciative. Thanks!