源码地址：https://github.com/redsolution/xabber-android
编译后运行Gradle Build报错
Error:Execution failed for task ':app:preDexBetaDebug'.
com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_45\bin\java.exe'' finished with non-zero exit value 1
这个网页上有，不过是英文的
http://stackoverflow.com/questions/28917696/errorexecution-failed-for-task-appdexdebug-com-android-ide-common-process