I have two accounts on OpenStack (admin and corey), I would like to raise the permission of "corey" up to admin, and this is what I have done.

$ openstack role add --project service --user corey admin

$ source corey-openrc.sh

Nothing changed. So I tried this.

$ openstack role set --name corey admin

After doing this, both admin and corey lost all permissions, all commands can't work correctly.

$ openstack role list

You are not authorized to perform the requested action: identity:list_roles. (HTTP 403)

$ nova list

ERROR (ClientException): The server is currently unavailable. Please try again at a later time. (HTTP 503)

I can't see any info. on Horizon either, I logged in as admin, all I got is:

Error: Unable to retrieve instances

What should I do to fix this problem, I have completely no idea now.