title: Trying to Yarn add a private Github repo and get 'couldn't find the binary git' error
body: <p>I have a really simple repo in GitHub (/Hooks/), currently containing just 1 file, a simple Hooks.ts typescript file. On my local machine, in my Workspace, I've created a project folder and I can yarn add normal repositories like <code>yarn add fuse.js</code> but I wanted to yarn add my private repo <code>yarn add Hooks</code> using this format <code>yarn add git+ssh//git@github.com:OrganisationName/Hooks.git</code> but I just get Error: couldn't find the binary git'. I have permissions to the Hooks repo because I can push/pull from it. I'm on OSX Mojave (10.14.16) and installed Yarn via brew. My yarn version (yarn -v) is 1.22.10. This is the latest brew will install after running <code>brew upgrade yarn</code>.</p>