vs2015 keeps adding project.lock.json to tfs
<p>My folder structure is:</p>

<p>-- Solution folder</p>

<p>--- .tfignore file</p>

<p>--- folder for each project</p>

<p>But vs2015 keeps including my project.lock.json files in source control.</p>

<p>In my .tfignore file, I added: project.lock.json</p>

<p>I've tried undoing and deleting the files from source control.</p>

<p>How can I stop it from including project.lock.json?</p>