java.lang.NoClassDefFoundError: com/google/gwt/dev/Compiler Caused by: java.lang.ClassNotFoundException: com.google.gwt.dev.Compiler

Hi Guys,

I'm trying to build an application using SMART GWT using below configurations.

Eclipse Version : Juno 4.2

GWT Version : 2.0.0

App Engine : 1.3.7 

The same is working in Eclipse GALILEO version 

Jars used:

appengine-api-1.0-sdk-1.3.7.jar

appengine-api-labs-1.3.7.jar

appengine-jsr107cache-1.3.7.jar

commons-beanutils-1.8.1.jar

commons-collections.jar

commons-digester-1.7.jar

commons-io-1.4.jar

commons-logging.jar

datanucleus-appengine-1.0.7.final.jar

datanucleus-core-1.1.5.jar

datanucleus-jpa-1.1.5.jar

font.jar

fscontext.jar

geronimo-jpa_3.0_spec-1.1.1.jar

geronimo-jta_1.1_spec-1.1.1.jar

groovy-all-1.5.5.jar

gwt-dev.jar

gwt-inc-20091216-r1739.jar

gwt-servlet.jar

gwt-user.jar

gwt-vis.jar

itext-2.1.7.jar

jdo2-api-2.3-eb.jar

jsr107cache-1.1.jar

log4j-1.2.15.jar

ojdbc14.jar

org.springframework.beans-3.0.5.RELEASE.jar

org.springframework.core-3.0.2.RELEASE.jar

org.springframework.expression-3.0.3.RELEASE.jar

poi-3.5-FINAL-20090928.jar

quartz-all-1.6.0.jar

smartgwt-skins.jar

smartgwt.jar

spring-core.jar

spring.jar

When I'm trying to complie the  

java.lang.NoClassDefFoundError: com/google/gwt/dev/Compiler

Caused by: java.lang.ClassNotFoundException: com.google.gwt.dev.Compiler

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClassInternal(Unknown Source)

Exception in thread "main" 

I'm not able to find out whether the issues is releated wrong plug-in, jars or any property i'm missing in the showcase.gwt.xml ...??

Request share me the your suggestions to fix the same. 

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