title: Laravel - RuntimeException - Could not scan for classes inside "app/tests/TestCase.php"
body: <p>I've been using Laravel to display a custom blog for a month or so now and it's been working perfectly.</p>
  
  <p>I just took a look at my site and it's saying:</p>
  
  <pre><code>/vendor/symfony/security/Symfony/Component/Security/Core/Util/SecureRandom.php): failed to open stream: No such file or directory
  </code></pre>
  
  <p>Having looked in the folders the location of the above file is actually:</p>
  
  <pre><code>/vendor/symfony/security-core/Symfony/Component/Security/Core/Util/SecureRandom.php): failed to open stream: No such file or directory
  </code></pre>
  
  <p>but I haven't changed this?</p>
  
  <p>If I try and run <code>composer update</code> I get this error:</p>
  
  <pre><code>root@server [/laravel]# composer update
  Loading composer repositories with package information
  Updating dependencies (including require-dev)
  Nothing to install or update
  Writing lock file
  Generating autoload files
  
    [RuntimeException]
    Could not scan for classes inside "app/tests/TestCase.php" which does not appear to be a file nor a folder
  </code></pre>
  
  <p>Any ideas what's causing this or how I should go about fixing / debugging it?</p>