Cannot deploy "Hello World" application using SAP NW CE 7.1

Hello,
I am having problems deploying a simple application to NW CE 7.1 (Welcome application
from NWDS tutorial).
I try to deploy from the NWDS. When I am executing "Deploy new archive
and run" I am asked for user and password.
According to the documentation I give following credentials:
SAP NetWeaver Application Server (e.g. for deploying applications)
username: Administrator
password: <your master password>
However after typing that I get immediate error in NWDS.
ConnectionException,cause=[ERROR CODE DPL.DCAPI.1144] NamingException.Cannot get initial context.Reason: Exception during getInitialContext operation. Cannot establish connection to the remote server.
Then the browser opens with following URL: http://localhost:50100/webdynpro/dispatcher/local/Welcome/WelcomeAPP?SAPtestId=38 and the following stack trace is shown.
"Application error occurred during the request procession."
Details: com.sap.tc.webdynpro.services.sal.core.DispatcherException: The requested deployable object 'local/Welcome' is not deployed on the server. Please check the used URL for typos.
     at com.sap.tc.webdynpro.clientserver.task.Task.getDeployableObject(Task.java:364)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.initApplicationDeployableObjectPart(RequestManager.java:539)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.initTask(RequestManager.java:477)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.doInitWdEnvironment(RequestManager.java:150)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:205)
     at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.delegateToRequestManager(AbstractExecutionContextDispatcher.java:205)
     at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.DispatchHandlerForRequestManager.doService(DispatchHandlerForRequestManager.java:38)
     at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.AbstractDispatchHandler.service(AbstractDispatchHandler.java:116)
     at com.sap.engine.services.servlets_jsp.server.deploy.impl.module.IRequestDispatcherImpl.dispatch(IRequestDispatcherImpl.java:93)
     at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.ExecutionContextDispatcher.dispatchToRequestManager(ExecutionContextDispatcher.java:140)
     at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.dispatch(AbstractExecutionContextDispatcher.java:93)
     at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.dispatch(AbstractExecutionContextDispatcher.java:105)
     at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doContent(AbstractDispatcherServlet.java:87)
     at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doGet(AbstractDispatcherServlet.java:54)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
     at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:66)
     at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:32)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:431)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:289)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:376)
     at com.sap.engine.services.servlets_jsp.filters.ServletSelector.process(ServletSelector.java:85)
     at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:71)
     at com.sap.engine.services.servlets_jsp.filters.ApplicationSelector.process(ApplicationSelector.java:160)
     at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:71)
     at com.sap.engine.services.httpserver.filters.WebContainerInvoker.process(WebContainerInvoker.java:67)
     at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)
     at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:71)
     at com.sap.engine.services.httpserver.filters.ResponseLogWriter.process(ResponseLogWriter.java:60)
     at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)
     at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:71)
     at com.sap.engine.services.httpserver.filters.DefineHostFilter.process(DefineHostFilter.java:27)
     at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
     at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:71)
     at com.sap.engine.services.httpserver.filters.MonitoringFilter.process(MonitoringFilter.java:29)
     at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
     at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:71)
     at com.sap.engine.services.httpserver.server.Processor.chainedRequest(Processor.java:309)
     at com.sap.engine.services.httpserver.server.Processor$FCAProcessorThread.run(Processor.java:222)
     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:152)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:247)
Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to create deployable object 'local/Welcome' since it is not a Web Dynpro object.
     at com.sap.tc.webdynpro.serverimpl.wdc.deployment.DeployableObjectFactory.getDeployableObject(DeployableObjectFactory.java:87)
     at com.sap.tc.webdynpro.services.sal.deployment.core.DeployableObjectInternal.getDeployableObjectInternal(DeployableObjectInternal.java:37)
     at com.sap.tc.webdynpro.clientserver.task.Task.getDeployableObject(Task.java:362)
     ... 43 more
Caused by: com.sap.tc.webdynpro.spi.WebDynproRuntimeException: No Web Dynpro application (deployable object) with name local/Welcome exists.
     at com.sap.engine.services.webdynpro.WebDynproRuntimeServiceImpl.getDeployableObject(WebDynproRuntimeServiceImpl.java:254)
     at com.sap.tc.webdynpro.serverimpl.wdc.deployment.DeployableObjectFactory.getDeployableObject(DeployableObjectFactory.java:85)
     ... 45 more
Please help.
Best regards.
Paweł

Hi!
For some reason, I am not able to deploy my application again (although it worked for a couple of weeks now)....
The error is:
com.sap.ide.eclipse.deployer.api.APIException: ConnectionException,cause=[ERROR CODE DPL.DCAPI.1144] NamingException.Cannot get initial context.
Reason: Exception while trying to get InitialContext.
     at com.sap.ide.eclipse.deployer.dc.DCClientImpl.<init>(DCClientImpl.java:70)
     at com.sap.ide.eclipse.deployer.dc.DCClientFactoryImpl.createClient(DCClientFactoryImpl.java:142)
     at com.sap.ide.eclipse.deployer.DeployerPlugin.getClient(DeployerPlugin.java:195)
     at com.sap.ide.eclipse.sdm.threading.DeployThreadManager.deploy(DeployThreadManager.java:359)
     at com.sap.ide.eclipse.sdm.SDMManager.deployArchives(SDMManager.java:149)
     at com.sap.ide.j2ee.wtpserver.engineadapter.SapDeployer.deployArchives(SapDeployer.java:30)
     at com.sap.ide.j2ee.wtpserver.engineadapter.SAPPublisher$DeployRunnable.run(SAPPublisher.java:302)
     at java.lang.Thread.run(Thread.java:595)
Caused by: com.sap.engine.services.dc.api.ConnectionException: [ERROR CODE DPL.DCAPI.1144] NamingException.Cannot get initial context.
Reason: Exception while trying to get InitialContext.
     at com.sap.engine.services.dc.api.session.impl.SessionImpl.getContext(SessionImpl.java:189)
     at com.sap.engine.services.dc.api.session.impl.SessionImpl.<init>(SessionImpl.java:115)
     at com.sap.engine.services.dc.api.session.impl.SessionFactoryImpl.newSession(SessionFactoryImpl.java:30)
     at com.sap.engine.services.dc.api.impl.ClientFactoryImpl.createClient(ClientFactoryImpl.java:74)
     at com.sap.ide.eclipse.deployer.dc.DCClientImpl.<init>(DCClientImpl.java:67)
     ... 7 more
Caused by: com.sap.engine.services.jndi.persistent.exceptions.NamingException: Exception while trying to get InitialContext. [Root exception is com.sap.engine.interfaces.cross.DestinationException: cannot establish connection with any of the available instances:
localhost:50004 Reason: com.sap.engine.services.rmi_p4.P4IOException: Cannot open connection to host: 10.18.206.83 and port: 50004]
     at com.sap.engine.services.jndi.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:488)
     at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
     at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
     at javax.naming.InitialContext.init(InitialContext.java:223)
     at javax.naming.InitialContext.<init>(InitialContext.java:197)
     at com.sap.engine.services.dc.api.session.impl.SessionImpl.getContext(SessionImpl.java:166)
     ... 11 more
Caused by: com.sap.engine.interfaces.cross.DestinationException: cannot establish connection with any of the available instances:
localhost:50004 Reason: com.sap.engine.services.rmi_p4.P4IOException: Cannot open connection to host: 10.18.206.83 and port: 50004
     at com.sap.engine.interfaces.cross.Destination.getNextAvailableBroker(Destination.java:59)
     at com.sap.engine.interfaces.cross.Destination.getRemoteBroker(Destination.java:35)
     at com.sap.engine.services.jndi.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:352)
     ... 16 more [ERROR: 01.02.2009 10:15:13 /userOut/daView_category (eclipse.UserOutLocation) [Thread[Thread-27,5,main]] ]
Please help!

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              G:\web_logic_server_installation\jdk160_29\bin    (installation folder of WLS)
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    Pallab

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    HI
    I am done with the installation of SOA on Windows now I want to deploy same sample like Hello World or my first page.?
    When you install SOA all the default example get automatically get installed or do we need to do something else.
    Where should I check (can you please let me know the location)
    Can you please let me know the step by step procedure for that.
    Regards
    User649230

    Refer below links
    http://download-uk.oracle.com/docs/cd/B31017_01/index.htm
    http://www.oracle.com/technology/tech/fmw4apps/ebs/BPEL-Hello-World.pdf
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