未安裝 react-leaflet 庫

Question

當我嘗試導入庫“react-leaflet”時，出現此錯誤：

ERROR in ./node_modules/react-leaflet/lib/propTypes/map.js
Module not found: Error: Can't resolve 'leaflet' in 'D:\PycharmProjects\adminora\node_modules\react-leaflet\lib\propTypes'
@ ./node_modules/react-leaflet/lib/propTypes/map.js 5:15-33
@ ./node_modules/react-leaflet/lib/Map.js
@ ./node_modules/react-leaflet/lib/index.js

編輯：我的 package.json 文件：

  "dependencies": {
    "@types/react": "^16.0.36",
    "babel-polyfill": "^6.26.0",
    "classnames": "^2.2.5",
    "history": "^4.7.2",
    "jwt-decode": "^2.2.0",
    "material-ui": "^1.0.0-beta.27",
    "material-ui-icons": "^1.0.0-beta.17",
    "prop-types": "^15.6.0",
    "react": "^16.2.0",
    "react-block-ui": "^1.1.1",
    "react-dom": "^16.2.0",
    "react-leaflet": "^1.8.1",
  }

Answer 1

您還需要安裝依賴包，請嘗試使用

npm install leaflet prop-types react react-dom react-leaflet

Answer 2

刪除 node_modules 文件夾和 package-lock.json 文件並嘗試以下命令。

npm install
npm install leaflet react-leaflet --save