[xwiki-devs] XWiki-Web Compile Problem

Hi Dear XWiki Developer, I met a new problem, when I compile it using Eclipse plugin, it gives me: [INFO] [gwt:compile] [INFO] using GWT jars from project dependencies : 1.7.0 [INFO] Unpack native libraries required to run GWT [INFO] establishing classpath list (scope = compile) [ERROR] Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gwt/dev/Compiler [ERROR] Caused by: java.lang.ClassNotFoundException: com.google.gwt.dev.Compiler [ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:200) [ERROR] at java.security.AccessController.doPrivileged(Native Method) [ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:188) [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:307) [ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) [ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:252) [ERROR] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) [ERROR] Could not find the main class: com.google.gwt.dev.Compiler. Program will exit. [INFO] [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] ------------------------------------------------------------------------ [INFO] XWiki Platform - Web - Parent POM ..................... SUCCESS [1.331s] [INFO] XWiki Platform - Web - GWT API ........................ SUCCESS [13.635s] [INFO] XWiki Platform - Web - GWT - DOM API .................. SUCCESS [9.809s] [INFO] XWiki Platform - Web - GWT - User ..................... SUCCESS [8.379s] [INFO] XWiki Platform - Web - WYSIWYG ........................ FAILED [12.190s] [INFO] XWiki Platform - Web - Standard ....................... NOT BUILT [INFO] ------------------------------------------------------------------------ [ERROR] The following mojo encountered an error while executing: Group-Id: org.codehaus.mojo Artifact-Id: gwt-maven-plugin Version: 1.1 Mojo: compile brought in via: POM I do not know what to do now. Could you please give me some suggestions? Thank you! Jue Wang