尝试加载 react-leaflet 地图时出错

Question

我正在尝试加载传单地图，但出现错误：
Attempted import error: 'Map' is not exported from 'react-leaflet' (imported as 'LeafletMap').
我尝试再次安装 react-leaflet 并尝试在我的 App.js 文件中导入 leaflet/dist/leaflet.css，但它仍然向我显示错误。这是代码
Map.js

import { Map as LeafletMap, TileLayer } from "react-leaflet";
import "./Map.css";

function Maps({ center, zoom }) {
  return (
    <div className="map">
      <LeafletMap center={center} zoom={zoom}>
        <TileLayer
          url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
          attribution='&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
        />
      </LeafletMap>
    </div>
  );
}

export default Maps;

App.js

import './App.css'
import Maps from './Maps'
import 'leaflet/dist/leaflet.css'

function App() {
  const [mapCenter, setMapCenter] = useState({ lat: 34.80746, lng: -40.4796})
  const [mapZoom, setMapZoom] = useState(3)

return (
    <div className="app">
        <Maps
            center= {mapCenter}
            zoom= {mapZoom}
         />
    </div>
  )
}

export default App;

Answer 1

也许你没有使用正确版本的 react-leaflet（你的不导出 Map）。请参阅我的工作样本：https://codesandbox.io/s/react-leaflet-forked-mg8x4?file=/src/index.js。我用的是 1.3.4

Answer 2

您的地图没有大小，可能问题出在这里

   <Map
       style={{ height: "100%", width: "100%" }}
       center={position}
       zoom={zoom}
   >

Answer 3

您错误地导入了您的组件。如果您使用的是 react-leaflet 2.x.x，则需要像下面的示例一样导入 Map。如果你使用 react-leaflet 3.0.5，会有一些变化。我在这个 CodeSandBox.

中用最后一个 react-leaflet 做了一个例子

Map.js

import { Map, TileLayer } from "react-leaflet";
import "leaflet/dist/leaflet.css";
import "./Map.css";

function Maps({ center, zoom }) {
  return (
    <div className="map">
      <Map center={center} zoom={zoom}
      {/* Give your map a size */}
      style={{ height: "100%", width: "100%" }}
        >
        <TileLayer
          url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
          attribution='&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
        />
      </Map>
    </div>
  );
}

export default Maps;

App.js

import './App.css'
import Maps from './Maps'

function App() {
  const [mapCenter, setMapCenter] = useState({ lat: 34.80746, lng: -40.4796})
  const [mapZoom, setMapZoom] = useState(3)

return (
    <div className="app">
        <Maps
            center= {mapCenter}
            zoom= {mapZoom}
         />
    </div>
  )
}

export default App;

尝试加载 react-leaflet 地图时出错

Getting error while trying to loading a react-leaflet map

javascript

leaflet

reactjs

react-leaflet