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ERROR problme Mechanism driver 'opendaylight' failed in create_network_postcommit

Hello. I new to OpenDaylight controler.

I have set up an OpenStack (Juno) configuration: 1 x Control node 1 x Network node 2 x Compute nodes 1 x SDN Controller node (OpenDayLight 0.2.2-Helium-SR2)

I have gone throw the guide https://wiki.opendaylight.org/view/OpenStackandOpenDaylight and setup my SDN envirement but when I try to create a network with the neutron I get:

neutron net-create private Internal Server Error (HTTP 500) (Request-ID: req-63d2ff2d-d49c-4f31-983f-cc66aed3a1e1)

in my log /var/log/neutron/server.log i get an error:

2015-02-16 01:37:09.434 25935 ERROR neutron.plugins.ml2.managers [req-63d2ff2d-d49c-4f31-983f-cc66aed3a1e1 None] Mechanism driver 'opendaylight' failed in createnetworkpostcommit 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers Traceback (most recent call last): 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/managers.py", line 291, in callondrivers 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers getattr(driver.obj, methodname)(context) 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/mechanismodl.py", line 145, in createnetworkpostcommit 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers self.synchronize('create', ODLNETWORKS, context) 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/mechanismodl.py", line 174, in synchronize 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers self.syncfull(context) 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/neutron/openstack/common/lockutils.py", line 249, in inner 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers return f(args, *kwargs) 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/mechanismodl.py", line 233, in syncfull 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers self.syncresources(collectionname, context) 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/mechanismodl.py", line 221, in syncresources 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers self.sendjson('post', collectionname, {key: tobesynced}) 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/mechanismodl.py", line 299, in sendjson 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers r.raiseforstatus() 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers File "/usr/lib/python2.7/site-packages/requests/models.py", line 795, in raiseforstatus 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers raise HTTPError(httperrormsg, response=self) 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers HTTPError: 500 Server Error: Internal Server Error 2015-02-16 01:37:09.434 25935 TRACE neutron.plugins.ml2.managers 2015-02-16 01:37:09.435 25935 ERROR neutron.plugins.ml2.plugin [req-63d2ff2d-d49c-4f31-983f-cc66aed3a1e1 None] mechanismmanager.createnetwork_postcommit failed, deleting network '97ec3508-dd5d-40e4-a795-ea8c7c8b5ec5'

Can you help me in any way place ?

Thank you