could not be found in the registry

[alam99]

Hello dears
i am new in eclipse plug-ins development...i have created my first plug-ins sample project using Hello RCP template...Acually i want to use an existing plugin named as "eclipsetrader" in my new created RCP plung-in named as "com.exampleRCP.hello". i have copyed all required eclipsetrader (plung-ins) in folder "D:\eclipse\plugins" and updated "D:\eclipse\features" folder.
When i open the "com.exampleRCP.hello.application" project's plugin.xml and go to the Extensions page. Click Add... and create an extension of type "net.sourceforge.eclipsetrader.core.proivder" and Click on the class link to create a new class. then add that class to a Perspective.
When i go to Overview page and run the application after clicking on "Launch an eclipse application". i faced the following exception. i dont know y is it happening. i have searched and saw every where but no solution i have got yet...plzzzzzzzzzzz somenone who know abt this help me...i will b so thankfull to her/him...Thanks in Advance
I am working on "Eclipse-RCP 3.3.1.1" keep in mind

java.lang.RuntimeException: Application "com.exampleRCP.hello.application" could not be found in the registry. The applications available are: .eclipse.equinox.app.error.
at org.eclipse.equinox.internal.app.EclipseAppContain er.startDefaultApp(EclipseAppContainer.java:242)
at org.eclipse.equinox.internal.app.EclipseAppContain er.start(EclipseAppContainer.java:98)
at org.eclipse.equinox.internal.app.Activator.addingS ervice(Activator.java:112)
at org.osgi.util.tracker.ServiceTracker$Tracked.track Adding(ServiceTracker.java:1064)
at org.osgi.util.tracker.ServiceTracker$Tracked.track InitialServices(ServiceTracker.java:926)
at org.osgi.util.tracker.ServiceTracker.open(ServiceT racker.java:330)
at org.osgi.util.tracker.ServiceTracker.open(ServiceT racker.java:274)
at org.eclipse.equinox.internal.app.Activator.start(A ctivator.java:54)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl$2.run(BundleContextImpl.java:999)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.startActivator(BundleContextImpl.java:993 )
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:974)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:346)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:260)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:400)
atorg.eclipse.core.runtime.internal.adaptor.Eclips eLazyStarter.postFindLocalClass(EclipseLazyStarter .java:111)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:340)
at org.eclipse.osgi.framework.internal.core.SingleSou rcePackage.loadClass(SingleSourcePackage.java:37)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClassInternal(BundleLoader.java:405)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:369)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:357)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at org.eclipse.core.internal.runtime.PlatformActivato r.startAppContainer(PlatformActivator.java:47)
at org.eclipse.core.internal.runtime.PlatformActivato r.start(PlatformActivator.java:32)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl$2.run(BundleContextImpl.java:999)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.startActivator(BundleContextImpl.java:993 )
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:974)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:346)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.resume(AbstractBundle.java:350)
at org.eclipse.osgi.framework.internal.core.Framework .resumeBundle(Framework.java:1118)
at org.eclipse.osgi.framework.internal.core.StartLeve lManager.resumeBundles(StartLevelManager.java:634)
at org.eclipse.osgi.framework.internal.core.StartLeve lManager.incFWSL(StartLevelManager.java:508)
at org.eclipse.osgi.framework.internal.core.StartLeve lManager.doSetStartLevel(StartLevelManager.java:28 2)
at org.eclipse.osgi.framework.internal.core.StartLeve lManager.dispatchEvent(StartLevelManager.java:468)
at org.eclipse.osgi.framework.eventmgr.EventManager.d ispatchEvent(EventManager.java:195)
at org.eclipse.osgi.framework.eventmgr.EventManager$E ventThread.run(EventManager.java:297)