I use git lfs to store the large files of my git repo. I then try to build this repo with hosted agents. My build is pretty simple. It has a single task: Execute PowerShell. In the invoked script, the first thing that I want to do is to fetch my lfs dependencies. I therefore have the following in my script:
& git lfs fetch
Unfortunately, my build fails with the following error:
2016-03-04T19:49:05.7021988Z ##[error]git: 'lfs' is not a git command. See 'git --help'.
2016-03-04T19:49:05.7031986Z ##[error]Did you mean this?
2016-03-04T19:49:05.7041987Z ##[error] flow
Since I can't install anything on hosted agents, how am I supposed to have git lfs available?
EDIT
In this issue, I am not talking about git lfs authentication problems as described here. I am strictly talking about the issue of calling git lfs.
Once you are able to call git lfs, look at this answer to solve the authentication problem.
You get this error message because git-lfs isn't installed on Hosted Build Agent by default.
And since you are using Hosted Build Agent, it would be a little troublesome to install git-lfs via Chocolatey on it as you don't have administrator permission. An alternative way would be download the binary files for git-lfs directly and upload it into Source Control. Then you can invoke the git-tfs.exe with an absolute path in your script.