koobas.hobune.stream
Unity Test Runner sending errors
After installing the 2.6 and 2.7 version of Unity, I always got exactly 374 errors coming from the "Test Runner", even on brand new projects !! I don't know if something went wrong during install but no matter what I do these errors keep appearing. Here is a screenshot from the console in a brand new empty project: 
Still don't know what is causing this but I solved it by uninstalling Unity and Unity Hub, and deleting all related data in the AppData folder. After reinstalling both applications the error is gone.
I know you have already solved this problem on your system but I wanted to provide a clear answer for those that will continue to encounter this.
This problem seems to surface in a few different ways but in every scenario it presents the user with a CS0246 error upon starting a new project.
To solve this simply navigate to AppData>Local>Unity>cache
Delete everything within this folder and start a new project.
The project will take longer than normal to build as Unity must download all of these files again, however your error will be gone.
The problem appears to be correlated with users that have Unity installed on their system but sporadically return to Unity, each time installing a new version.
