錯誤內容如下：
Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home/bin/java'' finished with non-zero exit value 1莫名其妙的錯誤，沒有解決思路。於是上網搜索，參考了多個方案也沒有解決問題。
解決如下：
把gradle的"compile fileTree(dir: 'libs', include: ['*.jar'])"
改成"provided fileTree(dir: 'libs', include: ['*.jar'])".