package not installing correctly (Terrain Tools)

So, I tried to install “Terrain Tools” package but when I do I get two error in my console that say nothing at all. Also the package its supposed to add a new item to the “Window” menubar but it doesn’t. Already tried with 2 versions of unity without success.
Any ideas?

Hey @TastyPoison , please file a bug report so that we an look into this - you can find the steps to do so here: Unity QA: Building quality with passion

Hi,
I’ve got exactly the same problem. Tried installing terrain tools via package manager but I don’t get the terrain menu item under ‘Window’. Also got the two empty errors in the console.
I’ve tried different unity versions, the current one being 2019.2.14f and I’m on windows 10. I’ve tried reinstalling Unity, to no avail though.
I’ve also noticed that this is not only related to the terrain tools. Other packages that would create a new menu item don’t work either. I’ve tried cinemachine, polybrush and probuilder and I don’t get a menu item anywhere for them.
@TreyK-47 Are there any news concerning this issue or do you want me to file a bug report for the same issue?
Any help would be greatly appreciated! Thank you

Are there answers to these questions available?