React Native Crash Undefined 不是对象(评估 'Sn[e]') [英] React Native Crash Undefined is not an object (Evaluating 'Sn[e]')

问题描述

有人面临反应原生构建问题吗?我正在尝试生成调试版本，但在应用程序启动时它崩溃了.

异常没有有用的信息.

我遇到了同样的问题

sudo react-native run-android

但是在将 RN 从 0.48 升级到 0.55(最新稳定版)后问题得到了解决

但是对于使用

生成的 apk 崩溃保持不变

sudo gradlew assembleDebug

崩溃类似于

解决方案

经过这么多的挣扎，从不同来源寻找解决方案，我开始知道 assembleDebug 本身并不是捆绑的.因此，使用以下命令显式捆绑它的资产

 react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output android/app/src/main/assets/index.android.bundle --资产目标 android/app/src/main/res/

然后生成构建

sudo gradlew assembleDebug

Any one facing react native build issue? I am trying to generate debug build but its crashing when the app is launched .

The exception has no useful information.

I was facing the same issue with

sudo react-native run-android

But that got resolved after upgrading RN from 0.48 to 0.55(latest Stable Version)

But the crash remain same for the apk generated using

sudo gradlew assembleDebug

The crash is similar to https://github.com/facebook/react-native/issues/16745

please see screenshot

解决方案

After so much struggle , finding solutions from different sources , I got to know that assembleDebug is not bundling by itself. So bundle it assets explicitly using below command

 react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res/

and then generate build

sudo gradlew assembleDebug

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