title: "Unable to locate libcv-dev" when installing OpenCV
body: <p>I am trying to install OpenCV on my Linux system. Bearing in mind that I am using Linux from a bootable USB drive, I tried installing this but it produces this error:</p>
  
  <pre><code> ubuntu@ubuntu:~$ sudo apt-get install libcv-dev
   Reading package lists... Done
   Building dependency tree       
   Reading state information... Done
   E: Unable to locate package libcv-dev"
  </code></pre>