Hi All can you please tell me solution for this error occurs

I am trying to use Adaptive RFC model am getting following error :
Failed to create new JCO client connection WD_RFC_METADATA_DEST: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection.
This error is occuring while i am trying to create JCO connections,
In my content administrator ,message server combo and application serber combo are showing empty why i am not understanding ?
expecting answer asap. useful Answers will be rewarded nicely
regarded
jalandhar.

Hi,
Before using the model, u have to create JCO connection in ur application server.
Check these links.
Configuration of JCo
http://help.sap.com/saphelp_nw2004s/helpdata/en/3a/3b1b40fcdd8f5ce10000000a155106/frameset.htm
For configuring SLD, check these.
SLD Connection
Configuring SLD in Sneak Preview SAP NetWeaver '04 Sneak
Regards,
Harini S

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Hi All can you please tell me why these error occurs

<b>com.sap.tc.webdynpro.services.exceptions.TypeNotFoundException: type com.accenture.pct.rrs.model.country.types.Spras could not be loaded: com.sap.dictionary.runtime.DdException: TypeBroker failed to access SLD: Error while obtaining JCO connection.</b>
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:250)
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getDataType(DataTypeBroker.java:213)
     at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo.init(DataAttributeInfo.java:318)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initUnmappedAttributes(NodeInfo.java:670)
     at com.sap.tc.webdynpro.progmodel.context.DataNodeInfo.doInit(DataNodeInfo.java:233)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:654)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:657)
     at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
     at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:429)
     at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:357)
     at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.initApplication(ApplicationSession.java:670)
     at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:267)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:706)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:660)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:228)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:152)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:56)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:40)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: com.sap.dictionary.runtime.DdException: TypeBroker failed to access SLD: Error while obtaining JCO connection.
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker$1.fillSldConnection(DataTypeBroker.java:90)
     at com.sap.dictionary.runtime.ProviderFactory.internalResolveLogicalNameToJCODestination(ProviderFactory.java:377)
     at com.sap.dictionary.runtime.ProviderFactory.resolveLogicalNameToJCODestination(ProviderFactory.java:322)
     at com.sap.dictionary.runtime.ProviderFactory.internalGetProvider(ProviderFactory.java:181)
     at com.sap.dictionary.runtime.ProviderFactory.getProvider(ProviderFactory.java:146)
     at com.sap.dictionary.runtime.DdDictionaryPool.getProvider(DdDictionaryPool.java:97)
     at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:79)
     at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:48)
     at com.sap.dictionary.runtime.DdBroker.getDataType(DdBroker.java:149)
     at com.sap.dictionary.runtime.DdBroker.getSimpleType(DdBroker.java:170)
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:242)
     ... 34 more
Caused by: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection.
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:149)
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnectionUnMapped(SystemLandscapeFactory.java:175)
     at com.sap.tc.webdynpro.services.sal.sl.core.SystemLandscapeInternal.getJCOClientConnectionUnMapped(SystemLandscapeInternal.java:62)
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker$1.fillSldConnection(DataTypeBroker.java:77)
     ... 44 more
Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'WD_RFC_METADATA_DEST'
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:517)
     at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:233)
     at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:218)
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:111)
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:147)
     ... 47 more
Caused by: com.sap.lcr.api.cimclient.LcrException: com.sap.lcr.api.cimclient.CIMClientException: IO error: Unable to open connection to host "pwdf3102:50100". The host is down or unavailable..
     at com.sap.lcr.api.sapmodel.SAP_J2EEEngineClusterAccessor.getInstance(SAP_J2EEEngineClusterAccessor.java:99)
     at com.sap.lcr.api.sapmodel.SAP_J2EEEngineClusterAccessor.getInstance(SAP_J2EEEngineClusterAccessor.java:78)
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.readJCODestinationFromSLD(JCOClientConnection.java:542)
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:476)
     ... 51 more

Hi Jalandhar,,
These error indicated that the RFC are not identified by the webdynpro runtime.
For this
Intially check is the backend system configured in the SLD.configure it first,
Secondly the RFC have to be created in the webdynpro contentadministrator
this u can find in
http://<portal>:port/index.html
then navigate to
/webdynpro/content administrator
Find ur application under local tab
Then u find a table with the imported models RFC
Select the RFC and create .Here u need to enter the SAP backend client name ,application server ,username .password
after it gets created ..u have to test it
Then the red button turns green indicating its succesfully configured for ur application
Try doin this ,,then deploy nd c
Cheers
Swathi
Do offer pts:-)

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Hi All can you please tell me solution for this error occurs

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