您好，我正在Windows 7 64位计算机上编译NetBeans 7.3.1中的GWT应用程序 我收到了以下问题：
com.google.gwt.dev.jjs.ast.JMethod
C:\Users\taha\Documents\NetBeansProjects\Sales Processing Systm\nbproject\build-gwt.xml:330: The following error occurred while executing this line:
C:\Users\taha\Documents\NetBeansProjects\Sales Processing Systm\nbproject\build-gwt.xml:479: Java returned: 1
BUILD FAILED (total time: 1 minute 55 seconds)