RN填坑之旅

一、error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081

 

解决方法之一：

把Android项目中local.properties文件拷贝到RN项目Android文件夹中

 

二、编译安装命令

     npx react-native run-android

 

三、Program type already present: android.support.v4.os.ResultReceiver$MyResultReceiver

在gradle.properties中加入下面代码即可：

1. android.useAndroidX=true

2. android.enableJetifier=true