Upgrade from Smartgwt Pro from 2.5 to 4.0

[phoenie]

Hi,
Right now we would like to upgrade our application from Smartgwt pro 2.5 to 4.0.

1. Download the zip file
2. Extract the zip
3. Copy and replace the smartgwt.jar, smartgwtpro.jar, smartgwt-skins.jar to my project

After compiled i got lots errors as below, may I know what I have miss out?

Thanks...

Validating newly compiled units
[ERROR] Errors in 'jar:file:/D:/user/test/dev/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.3.0.r37v201106211634/gwt-2.3.0/gwt-user.jar!/com/google/gwt/event/shared/EventBus.java'
[ERROR] Line 24: No source code is available for type com.google.web.bindery.event.shared.EventBus; did you forget to inherit a required module?
[ERROR] Line 28: No source code is available for type com.google.web.bindery.event.shared.HandlerRegistration; did you forget to inherit a required module?
[ERROR] Line 28: No source code is available for type com.google.web.bindery.event.shared.Event<H>.Type<H>; did you forget to inherit a required module?
[ERROR] Line 48: No source code is available for type com.google.web.bindery.event.shared.Event<H>; did you forget to inherit a required module?
[ERROR] Line 68: Cannot cast from GwtEvent<capture#1-of ?> to Event<?>
[ERROR] Line 69: No source code is available for type com.google.web.bindery.event.shared.UmbrellaException; did you forget to inherit a required module?
[ERROR] Line 76: Cannot cast from GwtEvent<capture#3-of ?> to Event<?>
[ERROR] Errors in 'jar:file:/D:/user/test/dev/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.3.0.r37v201106211634/gwt-2.3.0/gwt-user.jar!/com/google/gwt/event/shared/LegacyHandlerWrapper.java'
[ERROR] Line 19: No source code is available for type com.google.web.bindery.event.shared.HandlerRegistration; did you forget to inherit a required module?
[ERROR] Errors in 'jar:file:/D:/user/test/hsdes/dev/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.3.0.r37v201106211634/gwt-2.3.0/gwt-user.jar!/com/google/gwt/event/shared/ResettableEventBus.java'
[ERROR] Line 27: No source code is available for type com.google.web.bindery.event.shared.ResettableEventBus; did you forget to inherit a required module?
[ERROR] Line 49: Cannot cast from GwtEvent.Type<H> to Event.Type<H>
[ERROR] Line 49: No source code is available for type com.google.web.bindery.event.shared.Event<H>.Type<H>; did you forget to inherit a required module?
[ERROR] Line 53: No source code is available for type com.google.web.bindery.event.shared.HandlerRegistration; did you forget to inherit a required module?
[ERROR] Line 59: Cannot cast from GwtEvent.Type<H> to Event.Type<H>
[ERROR] Line 68: No source code is available for type com.google.web.bindery.event.shared.Event<H>; did you forget to inherit a required module?
[ERROR] Errors in 'jar:file:/D:/user/test/dev/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.3.0.r37v201106211634/gwt-2.3.0/gwt-user.jar!/com/google/gwt/event/shared/SimpleEventBus.java'
[ERROR] Line 27: No source code is available for type com.google.web.bindery.event.shared.SimpleEventBus; did you forget to inherit a required module?
[ERROR] Line 32: Cannot cast from GwtEvent.Type<H> to Event.Type<H>
[ERROR] Line 32: No source code is available for type com.google.web.bindery.event.shared.Event<H>.Type<H>; did you forget to inherit a required module?
[ERROR] Line 36: No source code is available for type com.google.web.bindery.event.shared.HandlerRegistration; did you forget to inherit a required module?
[ERROR] Line 42: Cannot cast from GwtEvent.Type<H> to Event.Type<H>
[ERROR] Line 51: No source code is available for type com.google.web.bindery.event.shared.Event<H>; did you forget to inherit a required module?
[ERROR] Errors in 'jar:file:/D:/user/test/dev/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.3.0.r37v201106211634/gwt-2.3.0/gwt-user.jar!/com/google/gwt/event/shared/UmbrellaException.java'
[ERROR] Line 24: No source code is available for type com.google.web.bindery.event.shared.UmbrellaException; did you forget to inherit a required module?
[ERROR] Errors in 'jar:file:/D:/user/test/dev/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.3.0.r37v201106211634/gwt-2.3.0/gwt-user.jar!/com/google/gwt/event/shared/testing/CountingEventBus.java'
[ERROR] Line 29: No source code is available for type com.google.web.bindery.event.shared.testing.CountingEventBus; did you forget to inherit a required module?
[ERROR] Line 41: Cannot cast from GwtEvent.Type<H> to Event.Type<H>
[ERROR] Line 41: No source code is available for type com.google.web.bindery.event.shared.Event<H>.Type<H>; did you forget to inherit a required module?
[ERROR] Line 45: No source code is available for type com.google.web.bindery.event.shared.HandlerRegistration; did you forget to inherit a required module?
[ERROR] Line 51: Cannot cast from GwtEvent.Type<H> to Event.Type<H>
[ERROR] Line 60: No source code is available for type com.google.web.bindery.event.shared.Event<H>; did you forget to inherit a required module?
[ERROR] Line 80: The method getCount(Event.Type<?>) in the type CountingEventBus is not applicable for the arguments (GwtEvent.Type<capture#5-of ?>)
[ERROR] Errors in 'file:/D:/user/test/EclipseProjects/Main/webgui/src/com/intel/data/webgui/client/common/ESGenericDateMethods.java'

[Isomorphic]

Start by following the full installation instructions from the documentation (don't just copy .jars).