[Ryu-devel] OVSDB Manager Attribute error

[<sru...@wi...>]

(venv) [root@CARBON ryu]# ryu-manager --verbose app/ovs_test.py
loading app app/ovs_test.py
loading app ryu.services.protocols.ovsdb.manager
instantiating app app/ovs_test.py of MyApp
instantiating app ryu.services.protocols.ovsdb.manager of OVSDB
BRICK MyApp
  CONSUMES EventNewOVSDBConnection
BRICK OVSDB
  PROVIDES EventModifyRequest TO {'OVSDB': set()}
  PROVIDES EventReadRequest TO {'OVSDB': set()}
  PROVIDES EventNewOVSDBConnection TO {'MyApp': set()}
  CONSUMES EventModifyRequest
  CONSUMES EventReadRequest
Listening on 0.0.0.0:6640 for clients
New connection from 127.0.0.1:45207
==SD:== reply.result in discover_schemas ['Open_vSwitch']
==SD:== schema.get_idl_schema
hub: uncaught exception: Traceback (most recent call last):
  File "/root/venv/lib/python3.4/site-packages/ryu/lib/hub.py", line 54, in _launch
    return func(*args, **kwargs)
  File "/root/venv/lib/python3.4/site-packages/ryu/services/protocols/ovsdb/manager.py", line 144, in _start_remote
    schema_exclude_columns=schema_ex_col)
  File "/root/venv/lib/python3.4/site-packages/ryu/services/protocols/ovsdb/client.py", line 322, in factory
    system_id = discover_system_id(idl)
  File "/root/venv/lib/python3.4/site-packages/ryu/services/protocols/ovsdb/client.py", line 128, in discover_system_id
    idl.run()
  File "/root/venv/lib/python3.4/site-packages/ovs/db/idl.py", line 178, in run
    self.send_cond_change()
  File "/root/venv/lib/python3.4/site-packages/ovs/db/idl.py", line 266, in send_cond_change
    if table.cond_changed:
AttributeError: 'TableSchema' object has no attribute 'cond_changed'