Failed to create healthmonitor using pool-id which is directly connected to LB

Creation of healthmonitor using pool-id (pool which doesn't have listener connected but connected via LB) shows exception on prompt.

After checking q-svc.log it shows:
    "TypeError: unhashable type: 'dict'"

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Openstack Commands used:
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# Create LB Graph
neutron lbaas-loadbalancer-create --name lb1 public-subnet
neutron lbaas-listener-create --loadbalancer lb1 --protocol HTTP --protocol-port 80 --name listener1
neutron lbaas-pool-create --lb-algorithm ROUND_ROBIN --listener listener1 --protocol HTTP --name pool1
neutron lbaas-member-create --subnet private-subnet --address 10.0.0.5 --protocol-port 80 pool1
neutron lbaas-member-create --subnet private-subnet --address 10.0.0.10 --protocol-port 80 pool1
neutron lbaas-healthmonitor-create --name health-1 --max-retries=3 --delay=3 --timeout=10 --type=HTTP --pool=pool1

#Create pool2
neutron lbaas-pool-create --name pool2 --lb-algorithm ROUND_ROBIN --loadbalancer lb1 --protocol HTTP
neutron lbaas-member-create --subnet private-subnet --address 10.0.0.3 --protocol-port 80 pool2
neutron lbaas-l7policy-create --action REDIRECT_TO_POOL --name policy1 --redirect-pool pool2 --listener listener1
neutron lbaas-l7rule-create --type PATH --compare-type=STARTS_WITH --value /pls policy1

# Now add healthmonitor this will shows exception:
neutron lbaas-healthmonitor-create --name health-2 --max-retries=3 --delay=3 --timeout=10 --type=HTTP --pool=pool2

I have added error from neutron-server.logs file in link:
   http://paste.openstack.org/show/627095/