login not working

[ghost]

Hello,
after installing the project, I've added the user like you said, then I navigated to web/admin.php (through a symlink) and tried to log in. It just gives me the login window again. It says this in the log:

[2014-04-30 14:11:22] myapp.INFO: Matched route "config_index" (parameters: "_controller": "[{},"indexAction"]", "_route": "config_index") [] []
[2014-04-30 14:11:22] myapp.CRITICAL: Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException: A Token was not found in the SecurityContext. (uncaught exception) at /data/www/.satis-admin/vendor/symfony/security/Symfony/Component/Security/Http/Firewall/AccessListener.php line 56 {"exception":"[object] (Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException: A Token was not found in the SecurityContext. at /data/www/.satis-admin/vendor/symfony/security/Symfony/Component/Security/Http/Firewall/AccessListener.php:56)"} []
[2014-04-30 14:11:22] myapp.INFO: Authentication exception occurred; redirecting to authentication entry point (A Token was not found in the SecurityContext.) [] []
[2014-04-30 14:11:22] myapp.DEBUG: Calling Authentication entry point [] []
[2014-04-30 14:11:22] myapp.INFO: < 401 [] []

config/users.json contains:

{
    "wpsgit": [
        "ROLE_USER",
        "dmn---SNIP---OPA=="
    ]
}