react-map-gl: uncaught ReferenceError: _typeof is not defined

Question

尝试使用 react-map-gl 但无法使最简单的库示例运行。一旦我尝试渲染地图，我就会在控制台中收到这个我无法理解的奇怪错误：

Uncaught ReferenceError: _typeof is not defined
    at mr (blob:http://localhos…6-19b5d5c80288:4993)
    at blob:http://localhos…6-19b5d5c80288:6740
    at new Fn (blob:http://localhos…6-19b5d5c80288:6757)
    at new Jn (blob:http://localhos…6-19b5d5c80288:7040)
    at blob:http://localhos…6-19b5d5c80288:8992
    at blob:http://localhos…-19b5d5c80288:14153

有时会变成这样：

Uncaught ReferenceError: _typeof is not defined
    at mr (0bcc60f9-25f2-4a56-8906-ebd57645a06c:4993)
    at 0bcc60f9-25f2-4a56-8906-ebd57645a06c:6740
    at new Fn (0bcc60f9-25f2-4a56-8906-ebd57645a06c:6757)
    at new Jn (0bcc60f9-25f2-4a56-8906-ebd57645a06c:7040)
    at 0bcc60f9-25f2-4a56-8906-ebd57645a06c:8992
    at 0bcc60f9-25f2-4a56-8906-ebd57645a06c:14153

带有 mapbox 徽标的地图框呈现，但没有其他内容。

我在 Rails 6 上有这些包裹：

"dependencies": {
  "@babel/preset-react": "^7.0.0",
  "@rails/actioncable": "^6.0.0-alpha",
  "@rails/activestorage": "^6.0.0-alpha",
  "@rails/ujs": "^6.0.0-alpha",
  "@rails/webpacker": "^4.0.7",
  "babel-plugin-transform-react-remove-prop-types": "^0.4.24",
  "prop-types": "^15.7.2",
  "react": "^16.9.0",
  "react-dom": "^16.9.0",
  "react-map-gl": "^5.0.10"
}

我的代码：

import React, { Component } from 'react';
import ReactMapGL from 'react-map-gl';
import 'mapbox-gl/dist/mapbox-gl.css';

class Map extends Component {
  state = {
    viewport: {
      latitude: 20.827873989993776,
      longitude: -73.86145304236818,
      zoom: 3,
    },
  };

  render() {
    return (
      <ReactMapGL
        mapboxApiAccessToken={[TOKEN]}
        {...this.state.viewport}
        onViewportChange={viewport => this.setState({ viewport })}
      />
    );
  }
}

export default Map;

用 Google 搜索了整个下午的错误，但一无所获。

Answer 1

从@JakeWorth 评论的相关 mapbox-gl 问题中，我能够从其中引用的有据可查的 PR 中找到解决方案：https://github.com/lewagon/rails-templates/pull/81

将以下行添加到 config/webpack/environment.js 可防止 Babel 转译 node_modules 中的包，这就是我的问题的原因。

environment.loaders.delete('nodeModules');

react-map-gl: uncaught ReferenceError: _typeof is not defined

react-map-gl: uncaught ReferenceError: _typeof is not defined

ruby-on-rails

reactjs

webpack

mapbox-gl-js

react-map-gl