Git-tf unable to find required JAR

I'm assuming you use the Git Bash.

You'll need to edit your git-tf bash script and change the line

MINGW32_NT*)

to

MINGW*)

because for you, uname -s will probably spit out “MINGW64_NT”.

Try using "git-tf" instead of "git tf". That got me past the issue on Windows (using PowerShell or just the vanilla command prompt).