Open Stack

Hi,
After successful installation of both keystone and nova, I tried to execute
the 'nova list' command by the folllowing env variables(My Deployment Model
is single machine deployment):
export OS_USERNAME=admin
export OS_PASSWORD=...
export OS_TENANT_NAME=service
export OS_AUTH_URL=http://10.0.0.1:5000

But the following unknown error was occurred:
ERROR: <attribute 'message' of 'exceptions.BaseException' objects> (HTTP
300)

My nova.conf has the following configuration to connect to keystone:
[keystone_authtoken]
auth_uri = localhost:5000
auth_host = 10.0.0.1
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = nova
admin_password = nova_pass

How can I solve the problem?
Thanks in advance.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140903/21947783/attachment.html>