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React Native:在Mac Terminal上运行命令“ npm run android”后看不到更改

[英]React Native: Cannot see the change after running command “npm run android” on Mac Terminal

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Hi, I am using Android Studio to run React Native. 嗨,我正在使用Android Studio运行React Native。 However, I am not able to see the change after running command "npm run android" inside the folder that contains all the files (App.js). 但是,在包含所有文件(App.js)的文件夹中运行命令“ npm run android”后,我看不到更改。 I am stuck with this instruction screen and don't know how to fix it. 我受此说明屏幕的困扰,不知道如何解决它。

Thank you. 谢谢。

Run: npm install -g react-native-cli 运行:npm install -g react-native-cli

then , run : react-native run-android 然后,运行:react-native run-android

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