Unable to install Addressables

Heyo,

One of our developers is having issues with Addressables. The Unity Editor seems to just kill off the package as soon as it's installed.

This only seems to happen on his machine. I'm able to install and use addressables just fine. However, he is unable to even get it installed, no matter what project. We've even created a new project and try and add addressbles to it through the package manager. Same problem.

Please see the attached screen grab.

It'll spit out the same errors as what's in the attached screen grab every time. We've tried re-installing Unity and Visual Studio as well with no luck. Here's a list of the things we've tried:
- Reinstalling Unity
- Reinstalling Visual Studio
- Deleting Library Folder
- Deleting the Visual Studio files that are generated
- Removing the Addressable package and re-installing it.
- Transferring a working project from my machine to his machine via Git.

All end in the same failure, Unity kills off the addressable package (it still says it's installed, but a bunch of files from the package are missing)

Please help, thank you,

-TSP

 

I forgot to post our Unity version. We're using Unity 2019.1.8.

Both of our machines are running the same version trying to install the same Addressables package 1.3.8. Which is working on my machine but not on his.

 

For anyone else that manages to stumble on this problem:

I finally found a "solution". I was able to get it working again after COMPLETELY removing Unity from the PC and reinstalling.
I followed this post here:
https://answers.unity.com/questions...45.478335140.1574097772-1587506860.1560463891

It seems that clearing the registry fixed it for us.