title: GitLab push error: LFS objects are missing
body: <p>I've used Git LFS for GitLab for a few months now without any problems, but it returned the following error while pushing files lately:</p>
  
  <pre><code>$ git push origin master
  Git LFS: (14 of 14 files) 8.88 MB / 8.88 MB
  Counting objects: 54, done.
  Delta compression using up to 6 threads.
  Compressing objects: 100% (49/49), done.
  Writing objects: 100% (54/54), 5.42 KiB | 0 bytes/s, done.
  Total 54 (delta 15), reused 0 (delta 0)
  remote: GitLab: LFS objects are missing. Ensure LFS is properly set up or try a manual "git lfs push --all".
  To https://gitlab.com/&lt;gitURL&gt;.git
  ! [remote rejected] master -&gt; master (pre-receive hook declined)
  error: failed to push some refs to 'https://gitlab.com/&lt;gitURL&gt;.git'
  </code></pre>
  
  <p>where <code>gitURL</code> is my git-repository URL.</p>
  
  <p>As the error suggests I tried to manually push my binary files, using <code>git lfs push --all</code>, which gives me the following output:</p>
  
  <pre><code>$ git lfs push --all origin master
  Git LFS: (0 of 0 files, 1370 skipped) 0 B / 0 B, 1.77 GB skipped
  </code></pre>
  
  <p>which means by my understanding that all my local files are already successfully stored on my server.</p>
  
  <p>Trying to fetch all lfs files does work fine as well:</p>
  
  <pre><code>$ git lfs fetch --all
  Scanning for all objects ever referenced...
  * 1446 objects found
  Fetching objects...
  </code></pre>
  
  <p>which finishes without any errors.</p>
  
  <p>Moreover checking all lfs files for consistency using <code>git lfs fsck</code> seems to work fine too:</p>
  
  <pre><code>$ git lfs fsck
  Git LFS fsck OK
  </code></pre>
  
  <p>I'm starting to run out of ideas about fixing this error now. 
  Any help would be greatly appreciated.</p>