title: Nginx+Passenger Error - libcurl.so.4: version `CURL_OPENSSL_3' not found
body: <h3>System:</h3>
  
  <ul>
  <li>Ubuntu: <strong>18.04 LTS</strong></li>
  <li>Passenger: <strong>5.3.1</strong></li>
  <li><code>nginx</code> with <code>libnginx-mod-http-passenger</code></li>
  </ul>
  
  <p><code>$ sudo nginx -t</code></p>
  
  <p>Returns:</p>
  
  <pre><code>PassengerLoggingAgent: /usr/lib/x86_64-linux-gnu/libcurl.so.4: version `CURL_OPENSSL_3' not found (required by PassengerLoggingAgent)
  2018/06/04 02:28:40 [alert] 10411#0: Unable to start the Phusion Passenger watchdog because it encountered the following error during startup: Unable to start the Phusion Passenger logging agent: it seems to have crashed during startup for an unknown reason, with exit code 1 (-1: Unknown error)
  </code></pre>
  
  <p>```</p>