android - 无法使用模拟器，使用 react-native 和 expo

Question

我在 expo 中使用 React Native，操作系统:Elementary OS，模拟器:Android Studio 模拟器。

尝试在模拟器中打开应用程序时出现以下错误

12:58:16: Starting Android...
Error running adb: Error running app. Error: Activity not started, unable to resolve Intent { act=android.intent.action.VIEW dat=exp://192.168.0.101:19000 flg=0x10000000 }


 › Press a to open Android device or emulator, or i to open iOS emulator.
 › Press q to display QR code.
 › Press r to restart packager, or R to restart packager and clear cache.
 › Press d to toggle development mode. (current mode: development)

(node:15266) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'length' of null
    at /xdl/src/Android.js:90:18
    at Generator.next (<anonymous>)
    at step (/home/afzal/AFZAL/Cloud_Drive/Development/React Native/react-native-boilerplate-redux-flow-master/node_modules/xdl/build/Android.js:475:191)
    at /home/afzal/AFZAL/Cloud_Drive/Development/React Native/react-native-boilerplate-redux-flow-master/node_modules/xdl/build/Android.js:475:361
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:160:7)
(node:15266) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)

Answer 1

下载expo的XDE并从XDE创建项目

https://github.com/expo/xde/releases

在你的电脑和手机上通过相同的wifi连接运行应用程序或者你可以用数据线连接

对于 Emulator，首先启动 Emulator，然后运行应用程序 你可以为模拟器使用 genymotion