javascript - React-native:无法构建Android应用程序

Question

我是一个新手，刚开始接触 react-native。第一个 hello world 应用程序运行正常，当我启动第二个应用程序时出现此错误:

:app:transformClassesWithDexForDebug FAILED

FAILURE: Build failed with an exception.

*What went wrong:
Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: java.lang.RuntimeException:java.lang.RuntimeException:com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: java.lang.UnsupportedOperationException

* 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: 14.034 secs
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have set up your Android development environment:
https://facebook.github.io/react-native/docs/android-setup.html

Answer 1

看起来您的应用现在是 multidex，您可以了解更多关于 here 的信息

要解决这个问题，只需在 build.gradle 上启用 multidexing:

defaultConfig {
        ...
        minSdkVersion 14
        targetSdkVersion 21
        ...

        // Enabling multidex support.
        multiDexEnabled true
    }