You need to add the following lines to /etc/apt/sources.list file or you need to make sure you have enab... Universe and multiverse repositories in /etc/apt/sources.list file
<code>sudo gedit /etc/apt/sources.list</code>
Make sure you have the following two lines save ... u need to run the following command to update the source list
<code>sudo apt-get update</code>
Install mpl