TYPO3 Exception 1533822084


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Argon2iPasswordHash is not available

The following exception may bubble up since TYPO3 v9 during login:

#1533822084 TYPO3\CMS\Core\Crypto\PasswordHashing\InvalidPasswordHashException
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.


If an instance has just been upgraded and if argon2i hash mechanism is not available locally, the default backend will still try to upgrade a given user password to argon2i if the install tool has not been executed once.


This typically happens only if a system has just been upgraded and a backend login is performed before the install tool has executed silent upgarde wizards.


Please see Password hashing troubleshooting.