title: ROS installation: no such file or directory
body: <p>According to ros wiki, to set up environment,
  I typed</p>
  
  <pre><code>echo "source /opt/ros/kinetic/setup.bash" &gt;&gt; ~/.bashrc
  source ~/.bashrc
  </code></pre>
  
  <p>The error is</p>
  
  <pre><code>/opt/ros/kinetic/setup.bash:.:8: no such file or directory: /home/pikashun/setup.sh
  </code></pre>
  
  <p>In <code>~/.bashrc</code> file, there is the <code>source /opt/ros/kinetic/setup.bash</code> line.</p>
  
  <p>I use Ubuntu on WSL.
  How can I improve?</p>
  
  <p>Thank you! </p>