Cluster bootstrap fails due to an unknown exception handler

[sarun87]

User defined exception not found: FailedActiveMasters

Output:

ubuntu@arun-peter-pmkft-test-host03:~$ pf9ctl cluster bootstrap --masterVip 10.128.140.20 --masterVipIf ens3 --containersCidr 10.20.0.0/16 --servicesCidr 10.21.0.0/16 --privileged true --allowWorkloadsOnMaster true arun-bb-clibootstrap
Proceed with creating a Kubernetes cluster with the current node as the Kubernetes master [y/n]? [y]:
Preparing the local node to be added to Platform9 Managed Kubernetes
Preparing nodes  [####################################]  100%
Creating Cluster: arun-bb-clibootstrap
Using nodepool id: 6b6e8552-42cb-4dbc-9573-55a7c188197b
Waiting for cluster create to complete, status = True
Cluster arun-bb-clibootstrap created successfully
Cluster UUID: dce80aca-476a-4fdd-bb4d-dc4e0b3e5644
Attaching to cluster arun-bb-clibootstrap
Discovering UUIDs for the cluster's master nodes
Master nodes:
1c50b5c7-f0a0-4fa2-b965-695dee5ad3ab
Checking if cluster is available, status = True
Attaching master nodes to the cluster
Waiting for cluster to become ready, status = ok
Attaching to cluster
Successfully attached to cluster
Waiting for all masters to become active  [####################################]  100%
Traceback (most recent call last):
  File "/usr/bin/pf9ctl", line 8, in <module>
    sys.exit(cli())
  File "/opt/pf9/cli/lib/python3.5/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/opt/pf9/cli/lib/python3.5/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/opt/pf9/cli/lib/python3.5/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/opt/pf9/cli/lib/python3.5/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/opt/pf9/cli/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/opt/pf9/cli/lib/python3.5/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/opt/pf9/cli/lib/python3.5/site-packages/click/decorators.py", line 21, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/opt/pf9/cli/lib/python3.5/site-packages/pf9/cluster/commands.py", line 346, in bootstrap
    attach_cluster(ctx.params['cluster_name'], (local_ip[0],), None, ctx)
  File "/opt/pf9/cli/lib/python3.5/site-packages/pf9/cluster/commands.py", line 189, in attach_cluster
    cluster_attacher.wait_for_n_active_masters(cluster_name, len(master_nodes))
  File "/opt/pf9/cli/lib/python3.5/site-packages/pf9/cluster/cluster_attach.py", line 82, in wait_for_n_active_masters
    raise FailedActiveMasters(msg)
NameError: name 'FailedActiveMasters' is not defined

Pulled from master:lastest
OS: Ubuntu16