Make sure you have a current copy of devstack and make the following change from the linked page in the localrc

QUANTUM_BRANCH=stable/grizzly

Should be changed to be:

NEUTRON_BRANCH=stable/grizzly

Hi,

You can also try the following

git clone git://github.com/openstack-dev/devstack.git -b stable/grizzly cd devstack

Create "localrc" file and add the following lines

disable_service n-net enable_service q-svc enable_service q-agt enable_service q-dhcp enable_service q-l3 enable_service q-meta enable_service quantum

NOVA_BRANCH=stable/grizzly CINDER_BRANCH=stable/grizzly GLANCE_BRANCH=stable/grizzly HORIZON_BRANCH=stable/grizzly KEYSTONE_BRANCH=stable/grizzly QUANTUM_BRANCH=stable/grizzly

Save and close the file and execute ./stack.sh Above mentioned steps worked for me

Thanks, Narsing