[xwiki-devs] Compiling Error on RealTime Wiki Editor

Hi, I tried to compile the project but there are error messages shown as follows: [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] XWiki Platform - Realtime - Parent POM ............ SUCCESS [0.251s] [INFO] XWiki Platform - Realtime - Editor - Parent POM ... SUCCESS [0.110s] [INFO] XWiki Platform - Realtime - Editor - GWT Client ... FAILURE [10.361s] [INFO] XWiki Platform - Realtime - Editor - GWT Server ... SKIPPED [INFO] XWiki Platform - Realtime - Editor - User Interface SKIPPED [INFO] XWiki Platform - Realtime - Editor - GWT Client And Server SKIPPED [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 11.948s [INFO] Finished at: Thu Apr 10 11:10:46 EDT 2014 [INFO] Final Memory: 29M/236M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.codehaus.mojo:gwt-maven-plugin:2.6.0:compile (default) on project xwiki-platform-realtime-editor-client: Command [[ [ERROR] C:\Program Files\Java\jdk1.7.0_45\jre\bin\java -Xmx512m -classpath C:\Users\Long\xwiki-platform-realtime-master\xwiki-platform-realt ime-editor\xwiki-platform-realtime-editor-client\target\classes;C:\Users\Long\xwiki-platform-realtime-master\xwiki-platform-realtime-editor\ xwiki-platform-realtime-editor-client\src\main\java;C:\Users\Long\xwiki-platform-realtime-master\xwiki-platform-realtime-editor\xwiki-platfo rm-realtime-editor-client\target\generated-sources\gwt;C:\Users\Long\.m2\repository\org\xwiki\commons\xwiki-commons-component-api\5.4.3\xwik i-commons-component-api-5.4.3.jar;C:\Users\Long\.m2\repository\org\xwiki\commons\xwiki-commons-stability\5.4.3\xwiki-commons-stability-5.4.3 .jar;C:\Users\Long\.m2\repository\org\xwiki\commons\xwiki-commons-text\5.4.3\xwiki-commons-text-5.4.3.jar;C:\Users\Long\.m2\repository\org\a pache\commons\commons-lang3\3.2\commons-lang3-3.2.jar;C:\Users\Long\.m2\repository\org\slf4j\slf4j-api\1.7.5\slf4j-api-1.7.5.jar;C:\Users\Lo ng\.m2\repository\javax\inject\javax.inject\1\javax.inject-1.jar;C:\Users\Long\.m2\repository\org\xwiki\platform\xwiki-platform-gwt-user\5.4 .1\xwiki-platform-gwt-user-5.4.1.jar;C:\Users\Long\.m2\repository\org\xwiki\platform\xwiki-platform-gwt-dom\5.4.1\xwiki-platform-gwt-dom-5.4 .1.jar;C:\Users\Long\.m2\repository\com\google\gwt\gwt-user\2.6.0\gwt-user-2.6.0.jar;C:\Users\Long\.m2\repository\javax\validation\validatio n-api\1.0.0.GA \validation-api-1.0.0.GA.jar;C:\Users\Long\.m2\repository\javax\validation\validation-api\ 1.0.0.GA\validation-api-1.0.0.GA-sou rces.jar;C:\Users\Long\.m2\repository\org\json\json\20090211\json-20090211.jar;C:\Users\Long\.m2\repository\com\google\gwt\gwt-user\2.6.0\gw t-user-2.6.0.jar;C:\Users\Long\.m2\repository\com\google\gwt\gwt-dev\2.6.0\gwt-dev-2.6.0.jar com.google.gwt.dev.Compiler -logLevel INFO -sty le PRETTY -war C:\Users\Long\xwiki-platform-realtime-master\xwiki-platform-realtime-editor\xwiki-platform-realtime-editor-client\target\gwt- output\gwt -localWorkers 4 -XnoclassMetadata -XnocheckCasts -XfragmentCount -1 -sourceLevel auto -gen C:\Users\Long\xwiki-platform-realtime- master\xwiki-platform-realtime-editor\xwiki-platform-realtime-editor-client\target\.generated fr.loria.score.Rt [ERROR] ]] failed with status 1 [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :xwiki-platform-realtime-editor-client ------------------------------------------------------------------------ My directory is in C:\Users\Long\ Does any one knows how to solve this problem? The editor is in the following link: http://extensions.xwiki.org/xwiki/bin/view/Extension/RealTime+Wiki+Editor