[Observium] No Auth_Mechanisms defined to add user

All, So I followed the install process to a T, and it was going very well until I hit this: ./adduser.php <my username> <my Password> 10Observium CE 0.16.1.7533Add User ERROR: no valid auth_mechanism defined. I am running Debian 7 VM, and all dependencies are there.  $config['auth_mechanism]         = "mysql";

is in the config.php Anyone else run into this before?