Unable to create user!

When I attempt to add a user/subscriber - it tells me invalid input!!

[admin@rt.impiouspunk.com] tool user-manager user> add
subscriber: admin
input does not match any value of subscriber
[admin@rt.impiouspunk.com] tool user-manager user>

Am I doing something wrong? I checked the WIKI and it just mentions to enter the add command and it will prompt for requested username.

‘tool user-manager customer add’ ? are you trying to add a user manager user or a hotspot user?