React-native：無法構建Android應用程序

Question

我是一名新手，剛剛開始將我的腳趾浸入反應原生。在第一個Hello World應用程序並運行沒關係，我開始了第二個我收到此錯誤：

: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

它看起來像你的應用程序現在multidex，你可以瞭解鐵道部有關here

爲了解決這個問題，只是啓用多重索引build.gradle：

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

     // Enabling multidex support. 
     multiDexEnabled true 
    }