git-tf : git-tf: Unknown host "server"

Question

I have TFS (on-premesies ) having my server name:8080 and I am able to clone repo to my system but I am trying to clone tfs repo to another system. Below is my code :-

git tfs clone lp-r90c2gwk:8080/tfs/DefaultCollection $/SampleProject D:\GitTemp

but getting error "git-tf : git-tf: Unknown host server". Can you give me idea how can I clone tfs(on-premises) repo to another system?