我在WEB-UI界面中“网络”->“来宾网络”中点击“添加来宾网络”时，界面显示如下错误，而且我已建立一个区域且能正常启动
，却在图中区域一栏下拉框中未显示任何区域，请问这是什么原因导致的啊，以下是截图和log日志报错信息
2014-04-17 21:45:18,598 DEBUG [agent.manager.DirectAgentAttache]
(DirectAgent-33:null) Seq 2-376832144: Executing request
2014-04-17 21:45:19,014 DEBUG [agent.manager.DirectAgentAttache]
(DirectAgent-33:null) Seq 2-376832144: Response Received:
2014-04-17 21:45:19,015 DEBUG [agent.transport.Request] (StatsCollector-1:null)
Seq 2-376832144: Received: { Ans: , MgmtId: 52228114321, via: 2, Ver: v1,
Flags: 10, { GetStorageStatsAnswer } }
2014-04-17 21:45:21,539 DEBUG [cloud.api.ApiServlet] (catalina-exec-11:null)
===START=== 192.168.248.1 -- GET
command=listZones&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&_=1397742321619
2014-04-17 21:45:21,555 DEBUG [cloud.api.ApiServlet] (catalina-exec-11:null)
===END=== 192.168.248.1 -- GET
command=listZones&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&_=1397742321619
2014-04-17 21:45:21,578 DEBUG [cloud.api.ApiServlet] (catalina-exec-20:null)
===START=== 192.168.248.1 -- GET
command=listDomains&listAll=true&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&_=1397742321666
2014-04-17 21:45:21,587 DEBUG [cloud.api.ApiServlet] (catalina-exec-20:null)
===END=== 192.168.248.1 -- GET
command=listDomains&listAll=true&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&_=1397742321666
2014-04-17 21:45:21,596 DEBUG [cloud.api.ApiServlet] (catalina-exec-2:null)
===START=== 192.168.248.1 -- GET
command=listProjects&listAll=true&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&_=1397742321684
2014-04-17 21:45:21,609 DEBUG [cloud.api.ApiServlet] (catalina-exec-2:null)
===END=== 192.168.248.1 -- GET
command=listProjects&listAll=true&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&_=1397742321684
2014-04-17 21:45:21,623 DEBUG [agent.manager.AgentManagerImpl]
(AgentManager-Handler-10:null) SeqA 3-740: Processing Seq 3-740: { Cmd ,
MgmtId: -1, via: 3, Ver: v1, Flags: 11,
[{"com.cloud.agent.api.ConsoleProxyLoadReportCommand":{"_proxyVmId":2,"_loadInfo":"{\n
\"connections\": []\n}","wait":0}}] }
2014-04-17 21:45:21,628 DEBUG [agent.manager.AgentManagerImpl]
(AgentManager-Handler-10:null) SeqA 3-740: Sending Seq 3-740: { Ans: , MgmtId:
52228114321, via: 3, Ver: v1, Flags: 100010,
[{"com.cloud.agent.api.AgentControlAnswer":{"result":true,"wait":0}}] }
2014-04-17 21:45:21,653 DEBUG [cloud.api.ApiServlet] (catalina-exec-5:null)
===START=== 192.168.248.1 -- GET
command=listNetworkOfferings&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&state=Enabled&zoneid=null&guestiptype=Shared&_=1397742321740
2014-04-17 21:45:21,658 DEBUG [cloud.api.ApiDispatcher] (catalina-exec-5:null)
Object entity uuid = null does not exist in the database.
2014-04-17 21:45:21,659 INFO [cloud.api.ApiServer] (catalina-exec-5:null)
Unable to execute API command listnetworkofferings due to invalid value.
Invalid parameter zoneid value=null due to incorrect long value format, or
entity does not exist or due to incorrect parameter annotation for the field in
api cmd class.
2014-04-17 21:45:21,665 DEBUG [cloud.api.ApiServlet] (catalina-exec-5:null)
===END=== 192.168.248.1 -- GET
command=listNetworkOfferings&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&state=Enabled&zoneid=null&guestiptype=Shared&_=1397742321740
2014-04-17 21:45:21,808 DEBUG [cloud.api.ApiServlet] (catalina-exec-23:null)
===START=== 192.168.248.1 -- GET
command=listNetworkOfferings&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&state=Enabled&zoneid=null&guestiptype=Shared&_=1397742321845
2014-04-17 21:45:21,813 DEBUG [cloud.api.ApiDispatcher] (catalina-exec-23:null)
Object entity uuid = null does not exist in the database.
2014-04-17 21:45:21,813 INFO [cloud.api.ApiServer] (catalina-exec-23:null)
Unable to execute API command listnetworkofferings due to invalid value.
Invalid parameter zoneid value=null due to incorrect long value format, or
entity does not exist or due to incorrect parameter annotation for the field in
api cmd class.
2014-04-17 21:45:21,814 DEBUG [cloud.api.ApiServlet] (catalina-exec-23:null)
===END=== 192.168.248.1 -- GET
command=listNetworkOfferings&response=json&sessionkey=PalXSDBwkSIDxsF4p%2BKzAM1uIAc%3D&state=Enabled&zoneid=null&guestiptype=Shared&_=1397742321845
^C
