yarn install fails on Tarball

[GaetanWi]

Hello!
Things seems to go wrong when trying to import local tarball dependency.

error An unexpected error occurred: "ENOTDIR: not a directory, scandir \AppData\Local\Yarn\cache\v1\npm-@xxx\custom-dep-0.0.0-1149da80-cf52-4ec0-8685-a4583bc73b10-1520268153222'".
info If you think this is a bug, please open a bug report with the information provided in "D:\dev-env\Workspaces\wks-angular\pillar-knowledge\yarn-error.log".

Got this ENOTDIR issue going on.
Find out the solution was on the extension. .tar Tarball is messing things up and had to rename my archive to .tgz

Kind of breaking change and big time loss for such a thing since .tar was allowed on npm and was working.