I have a problem

Please check your logfile at var/log/prod.log. Many problems reveal themselves after checking it.

If that doesn’t help, open a new issue at GitHub and we try to find a solution.

Changed configs/templates do not load

Kimai is built on top of Symfony, a framework that optimizes its speed by caching most files. Therefor, if you are running Kimai in production, you have to clear the cache before changes will show up:

bin/console cache:clear

See also the configurations docs.

I have only FTP available

So you want to install Kimai v2 but have no SSH access to your server? There is a workaround available, read the additional installation instructions.

Error on bin/console doctrine:schema:create

If you get an error during the installation of the database schema that mentions DC2Type:json_array, e.g. like the following:

In PDOConnection.php line 109:

  SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'JSON
   NOT NULL COMMENT '(DC2Type:json_array)', UNIQUE INDEX UNIQ_B9AC5BCE5E237E06' at line 1

Then the most likely case is that you are using a MariaDB database which is too old. You can find out which version is used by executing mysql --version or by checking the server information e.g. with PHPMyAdmin.

There is a discussion in the issue tracker about this topic.

Further readings:

Dotenv::populate() must be an instance of Symfony\Component\Dotenv\void

If you encounter an error like this:

PHP Fatal error:  Uncaught TypeError: Return value of Symfony\\Component\\Dotenv\\Dotenv::populate() must be an instance of Symfony\\Component\\Dotenv\\void, none returned in /var/www/kimai2/vendor/symfony/dotenv/Dotenv.php:95
Stack trace:
#0 /var/www/kimai2/vendor/symfony/dotenv/Dotenv.php(57): Symfony\\Component\\Dotenv\\Dotenv->populate(Array)
#1 /var/www//kimai2/public/index.php(15): Symfony\\Component\\Dotenv\\Dotenv->load('/var/www/html/k...')
#2 {main}\n  thrown in /var/www/kimai2/vendor/symfony/dotenv/Dotenv.php on line 95

you are running PHP 7.0. Probably you were able to install Kimai v2, because your PHP-CLI uses a different PHP version than your webserver. Upgrade PHP and the error will be gone.