title: How to unlock TYPO's Install Tool (/typo3/install.php)?
body: <p>After adding an empty text file called 'ENABLE_INSTALL_TOOL&quot; in the 'typo3conf' folder the Install Tool is still locked when I visit hostname/typo3/install.php.</p>
  <p>Some background information: I just uploaded all TYPO3 files to a remote host and am trying to get it to display the TYPO3 website. When I logged into the backend I got the following error:</p>
  <h1>1533822084 TYPO3\CMS\Core\Crypto\PasswordHashing\InvalidPasswordHashException</h1>
  <p>Configured default hash method
  TYPO3\CMS\Core\Crypto\PasswordHashing\Argon2iPasswordHash is not available. If the instance has just been upgraded, please log in to
  the standalone install tool at typo3/install.php to fix this. Follow
  the wiki link for more details.</p>
  <p>This error referred to this wiki page: <a href="https://wiki.typo3.org/Exception/CMS/1533822084" rel="nofollow noreferrer">https://wiki.typo3.org/Exception/CMS/1533822084</a></p>
  <p>Here it is suggested to:</p>
  <blockquote>
  <p>Call the standalone install tool and log in once. This should detect that argon2i is not available and will configure a different default hash mechanism. A backend login should be possible afterwards.</p>
  </blockquote>
  <p>Which is what I am stuck on since the Install Tool is locked.</p>