No such table error in quantum server.log

Hi,
I am working on QUantum configuration on Folsom and I see the below error in /var/log/quantum/server.log
Has anyone run into the same issue. How may I fix this.
Also when i run-->

*************************************************************************************************************
# quantum net-list
Request Failed: internal server error while processing your request.
*************************************************************************************************************
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1698, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1691, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/default.py", line 331, in do_execute
    cursor.execute(statement, parameters)
OperationalError: (OperationalError) no such table: networks u'SELECT networks.tenant_id AS networks_tenant_id, networks.id AS networks_id, networks.name AS networks_name, networks.status AS networks_status, networks.admin_state_up AS networks_admin_state_up, networks.shared AS networks_shared \nFROM networks LEFT OUTER JOIN externalnetworks ON networks.id = externalnetworks.network_id' ()
2012-12-05 17:26:51 DEBUG [eventlet.wsgi.server] 10.1.1.228 - - [05/Dec/2012 17:26:51] "GET //v2.0/networks.json?router%3Aexternal=True HTTP/1.1" 500 215 0.059018
2012-12-05 17:26:54 DEBUG [keystone.middleware.auth_token] Authenticating user token
2012-12-05 17:26:54 DEBUG [keystone.middleware.auth_token] Removing headers from request environment: X-Identity-Status,X-Tenant-Id,X-Tenant-Name,X-User-Id,X-User-Name,X-Roles,X-Service-Catalog,X-User,X-Tenant,X-Role
2012-12-05 17:26:54 DEBUG [routes.middleware] No route matched for GET /networks.json
2012-12-05 17:26:54 DEBUG [routes.middleware] Matched GET /networks.json
2012-12-05 17:26:54 DEBUG [routes.middleware] Route path: '/networks{.format}', defaults: {'action': u'index', 'controller': wsgify(quantum.api.v2.resource.resource, RequestClass=<class 'quantum.api.v2.resource.Request'>)}
2012-12-05 17:26:54 DEBUG [routes.middleware] Match dict: {'action': u'index', 'controller': wsgify(quantum.api.v2.resource.resource, RequestClass=<class 'quantum.api.v2.resource.Request'>), 'format': u'json'}
2012-12-05 17:26:54 ERROR [quantum.api.v2.resource] index failed
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/quantum/api/v2/resource.py", line 95, in resource
    result = method(request=request, **args)
  File "/usr/lib/python2.7/dist-packages/quantum/api/v2/base.py", line 198, in index
    return self._items(request, True)
  File "/usr/lib/python2.7/dist-packages/quantum/api/v2/base.py", line 168, in _items
    obj_list = obj_getter(request.context, **kwargs)
  File "/usr/lib/python2.7/dist-packages/quantum/plugins/openvswitch/ovs_quantum_plugin.py", line 471, in get_networks
    None)
  File "/usr/lib/python2.7/dist-packages/quantum/db/db_base_plugin_v2.py", line 930, in get_networks
    filters=filters, fields=fields)
  File "/usr/lib/python2.7/dist-packages/quantum/db/db_base_plugin_v2.py", line 214, in _get_collection
    return [dict_func(c, fields) for c in collection.all()]
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2115, in all
    return list(self)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2227, in __iter__
    return self._execute_and_instances(context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2242, in _execute_and_instances
    result = conn.execute(querycontext.statement, self._params)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1449, in execute
    params)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1584, in _execute_clauseelement
    compiled_sql, distilled_params
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1698, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1691, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/default.py", line 331, in do_execute
    cursor.execute(statement, parameters)
OperationalError: (OperationalError) no such table: networks u'SELECT networks.tenant_id AS networks_tenant_id, networks.id AS networks_id, networks.name AS networks_name, networks.status AS networks_status, networks.admin_state_up AS networks_admin_state_up, networks.shared AS networks_shared \nFROM networks LEFT OUTER JOIN externalnetworks ON networks.id = externalnetworks.network_id' ()
2012-12-05 17:26:54 DEBUG [eventlet.wsgi.server] 10.1.1.228 - - [05/Dec/2012 17:26:54] "GET //v2.0/networks.json?router%3Aexternal=True HTTP/1.1" 500 215 0.059234