Android开发在编译过程中经常会报类似如下的错误，突如其来经常会让我们不知所措。这时候最需要的就是静下心来，照着报错的提示排查问题。

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\77.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\80.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\81.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\82.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\79.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\74.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\73.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\76.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\75.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\78.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\17.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\26.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\25.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\12.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\8.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\21.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\4.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\5.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\27.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\0.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\22.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\14.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\30.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\31.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\13.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\18.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\9.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\28.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\10.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\15.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\1.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\2.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\19.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\6.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\23.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\11.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\16.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\29.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\3.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\24.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\7.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\20.jar, D:\ws\AutosizingTest\app\build\intermediates\transforms\dexBuilder\debug\72.jar
  Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.
  Program type already present: com.google.gson.FieldAttributes

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 17s
39 actionable tasks: 15 executed, 24 up-to-date

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.这句话是重点，但是说得不明不白的也不知道要怎么操作。

其实很简单，首先在Android Studio找到Terminal控制台（这个其实和CMD命令行控制台是一样的）

然后在控制台中输入如下指令，就可以重新编译debug版本，且带参数--stacktrace编译，如果编译失败会有失败的路径信息。

gradlew compileDebug --stacktrace

或者--info和--debug参数也用上会打印更多的log信息。

gradlew compileDebug --stacktrace --info --debug