title: How to do_fetch by hand in a Yocto Project
body: <p>My question is raised because my build-yocto server ran into the error:</p>
  
  <pre><code>ERROR: Fetcher failure: Fetch command failed with exit code 128, output:
  Cloning into bare repository '/mnt/wd2tb/home/Work/skrzg1h_iWg21m_QtHmi/build/downloads/git2/github.com.qtproject.qtenginio.git'...    
  Fetcher failure for URL: 'git://github.com/qtproject/qtenginio.git;name=qtenginio;branch=5.6;protocol=git'. Unable to fetch URL from any source.
  </code></pre>
  
  <p>In the meantime, my PC can do that. So, I cloned the <em>qtenginio</em> repo to my local PC.</p>
  
  <pre><code>$ git clone git://github.com/qtproject/qtenginio.git;name=qtenginio;branch=5.6;protocol=git
  </code></pre>
  
  <p>And copy the downloaded source code above into the <em>downloads/git2/github.com.qtproject.qtenginio.git</em> folder of Yocto project.</p>
  
  <p>Finally, I run the bitbake command.</p>
  
  <pre><code>$ bitbake qtenginio
  </code></pre>
  
  <p>But the fetch still fails.
  Anyone can help me in this case ?</p>