title: error while loading shared libraries: libgfortran.so.1: cannot open shared object file: No such file or directory
body: <p>My task is to put the program to docker environment, I use ubuntu container. and the program is written by fortran.
  When I run the program, I got this error</p>
  
  <pre><code>./cscheck.out: error while loading shared libraries: libgfortran.so.1: cannot open shared object file: No such file or directory
  </code></pre>
  
  <p>I have almost read all the search pages. I have tried the command <code>ldconfig -v</code>, but it doesn't work. And I learned that this error is because the missed libgfortran.so.1 , but in ubuntu package search page, the lowest version of libgfortran is 3. So I can't find the version 1. </p>
  
  <p>Can you give me clue, I need to keep trying.</p>