Android Studio - 意外的顶级例外: [英] Android Studio - UNEXPECTED TOP-LEVEL EXCEPTION:

问题描述

我使用作为工具一部分提供的新项目模板在 Android Studio 中构建了一个新项目.所有代码都是Studio生成的，我还没有做任何修改.

I have built a new project in Android Studio using the new project templates provided as part of the tool. All of the code has been generated by Studio I have not made any amendments yet.

我正在尝试运行代码，但应用程序失败并出现以下错误，不确定是什么问题，因此感谢任何帮助.

I am attempting to run the code but the app fails with the following errors, not sure what the problem is so any help appreciated.

UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.DexException: Multiple dex files define Landroid/support/v7/app/ActionBar$Callback;
    at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:594)
    at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:552)
    at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:533)
    at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:170)
    at com.android.dx.merge.DexMerger.merge(DexMerger.java:188)
    at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:439)
    at com.android.dx.command.dexer.Main.runMonoDex(Main.java:287)
    at com.android.dx.command.dexer.Main.run(Main.java:230)
    at com.android.dx.command.dexer.Main.main(Main.java:199)
    at com.android.dx.command.Main.main(Main.java:103)

 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:dexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
    C:\Users\RichardKavanagh\AppData\Local\Android\android-sdk\build-tools\19.0.1\dx.bat --dex --output D:\Android\Projects\MyHealthRecord\app\build\libs\app-debug.dex D:\Android\Projects\MyHealthRecord\app\build\classes\debug D:\Android\Projects\MyHealthRecord\app\build\dependency-cache\debug D:\Android\Projects\MyHealthRecord\app\build\pre-dexed\debug\android-support-v7-appcompat-5a78dab7e2789bbe64f4bc80d106ca75c04dcf6f.jar D:\Android\Projects\MyHealthRecord\app\build\pre-dexed\debug\classes-f9b947272e9f33ba50355b52d82755584f9c0c58.jar D:\Android\Projects\MyHealthRecord\app\build\pre-dexed\debug\support-v4-19.0.0-31a2c13df80d37d62ca50fec3bde6da0ca706223.jar
Error Code:
    2
Output:

    UNEXPECTED TOP-LEVEL EXCEPTION:
    com.android.dex.DexException: Multiple dex files define Landroid/support/v7/app/ActionBar$Callback;
        at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:594)
        at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:552)
        at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:533)
        at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:170)
        at com.android.dx.merge.DexMerger.merge(DexMerger.java:188)
        at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:439)
        at com.android.dx.command.dexer.Main.runMonoDex(Main.java:287)
        at com.android.dx.command.dexer.Main.run(Main.java:230)
        at com.android.dx.command.dexer.Main.main(Main.java:199)
        at com.android.dx.command.Main.main(Main.java:103)



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

BUILD FAILED

Total time: 12.948 secs

推荐答案

就像这里的其他人所说的那样，支持库 (com.android.support) 不止一次地包含在您的项目中.尝试在根级别的 build.gradle 中添加它，它应该排除通过其他项目依赖项导出的支持库.

Like everyone else said here, the support library (com.android.support) is being included more than once in your project. Try adding this in your build.gradle at the root level and it should exclude the support library from being exported via other project dependencies.

configurations {
    all*.exclude group: 'com.android.support', module: 'support-v4'
}

如果像这样的依赖项中包含不止一个支持库，您可能需要删除其中之一:

If you have more then one support libs included in the dependencies like this, you may want to remove one of them:

这篇关于Android Studio - 意外的顶级例外:的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！