javascript - 导入 react-native 社区选择器时出错

Question

我是 react-native 的新手，因为我使用的是 Expo 并且必须安装 react-native 社区选择器，所以我使用以下命令进行安装：

npm install @react-native-community/picker --save

之后我像这样导入它：

import {Picker} from '@react-native-community/picker';

但我收到以下错误：

While trying to resolve module `@react-native-community/picker` from file `C:\xampp\htdocs\secondtry\screens\HomeScreen3.js`, the package `C:\xampp\htdocs\secondtry\node_modules\@react-native-community\picker\package.json` was successfully found. However, this package itself specifies a `main` module field that could not be resolved (`C:\xampp\htdocs\secondtry\node_modules\@react-native-community\picker\js\index.js`. Indeed, none of these files exist:

标签： javascriptreactjsreact-native

Answer 1

您需要使用 expo 命令进行安装：

expo install @react-native-community/picker

这是文档