Node.js 不变违例："；“主要”；尚未注册。如果：*Metro（本地开发服务器）从错误的文件夹运行，则可能发生这种情况

我已将我的index.js更改为此，因为我正在尝试遵循以下步骤：

https://www.youtube.com/watch?v=6soHPnHxHxI


        import { registerRootComponent } from 'expo';
        import React from "react";
        import { AppRegistry } from "react-native";
        import App from "./App";
        import { name as appName } from "./app.json";
        import { Provider } from "react-redux";
        import { Provider as PaperProvider } from "react-native-paper"
        import store from "./store";
        import 'react-native-gesture-handler';

        const AppRedux = () => {
            <Provider {...{store}}>
                <PaperProvider>
                    <App></App>
                </PaperProvider>
            </Provider>
        }

        // registerRootComponent calls AppRegistry.registerComponent('main', () => App);
        // It also ensures that whether you load the app in the Expo client or in a native build,
        // the environment is set up appropriately
        //AppRegistry.registerComponent(appName, () => AppRedux);


        // registerRootComponent calls AppRegistry.registerComponent('main', () => App);
        // It also ensures that whether you load the app in the Expo client or in a native build,
        // the environment is set up appropriately
        registerRootComponent(AppRedux);

---

您是否从正确的文件夹运行了

expo start

或

npm start

？@RagulCs，npm从正确的文件夹启动，我使用可视源代码并从package.json文件运行应用程序，但它是从正确的文件夹运行的，即根项目文件夹请参阅此

Invariant Violation: "main" has not been registered. This can happen if: * Metro (the local dev server) is run from the wrong folder.