title: Requested formats are incompatible for merge and will be merged into mkv
body: <p>I was trying to download from the youtube</p>
  
  <pre><code>youtube-dl -F 249 "https://www.youtube.com/watch?v=yXT1ElMEkW8"
  </code></pre>
  
  <p>My version <code>youtube-dl --version</code> 2019.11.28</p>
  
  <p>I went throgh the link <a href="https://askubuntu.com/questions/806258/requested-formats-are-incompatible-for-merge">https://askubuntu.com/questions/806258/requested-formats-are-incompatible-for-merge</a> but could not help to resolve the issue</p>
  
  <p>[youtube] yXT1ElMEkW8: Downloading webpage [youtube] yXT1ElMEkW8: Downloading video info webpage WARNING: Requested formats are incompatible for merge and will be merged into mkv. ERROR: unable to open for writing: [Errno 13] Permission denied: '1.6 - Cloning Repo and Push_Pull - Git and GitHub for Poets-yXT1ElMEkW8.f247.webm.part'</p>