title: Symfony 2.8 application truble
body: <p>i've a problem with an application created with symfony 2.8.
  I use symfony 5.2 but i have to do some improvement in an application builded whith symfony 2.8(not mine).
  I've tried to install symfony 2.8 but is deprecated and don't work.
  I have 5 directories of 2.8 project :</p>
  <ol>
  <li>vendor</li>
  <li>app</li>
  <li>src</li>
  <li>doc</li>
  <li>bin</li>
  </ol>
  <p>i create a project</p>
  <pre><code>symfony new my_project_name
  </code></pre>
  <p>then i paste the 5 directories and doesen't work.
  i've tried use parameter --version=2.8  but  nothing...</p>
  <p>Any suggestion ? thanks in advance.</p>