我正在尝试用Bootstrap制作一个Electron应用程序.我收到此错误消息:

Uncaught TypeError: Cannot read property 'fn' of undefined
at setTransitionEndSupport (bootstrap.js:122)
at bootstrap.js:199
at bootstrap.js:201
at bootstrap.js:9
at bootstrap.js:10

我在package.json中的依赖项是:

"dependencies": {
  "bootstrap": "^4.1.2",
  "electron": "^2.0.5",
  "jquery": "^3.3.1",
  "popper.js": "^1.14.3"
}

我的index.html文件是:

  
  





  


    
Bootstrap Test

    

        We are using node
        , Chrome
        , and Electron
        .
    

  

  
  
  

然后html文件由Electron快速启动的main.js加载:

const { app, BrowserWindow } = require('electron')

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the Javascript object is garbage collected.
let win

function createWindow() {
  // Create the browser window.
  win = new BrowserWindow({ width: 800, height: 600 })

  // and load the index.html of the app.
  win.loadFile('index.html')

  // Open the DevTools.
  win.webContents.openDevTools()

  // Emitted when the window is closed.
  win.on('closed', () => {
    // Dereference the window object, usually you would store windows
    // in an array if your app supports multi windows, this is the time
    // when you should delete the corresponding element.
    win = null
  })
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)

// Quit when all windows are closed.
app.on('window-all-closed', () => {
  // On macOS it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

app.on('activate', () => {
  // On macOS it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (win === null) {
    createWindow()
  }
})

我发现的大多数解决方案告诉我在Bootstrap之前导入jQuery,但这已经是我正在做的事情.

谢谢您的帮助!

我找到了解决问题的方法.

我在index.html中添加了一个脚本:

这是script.js的内容:

window.$ = window.jQuery = require('jquery'); // not sure if you need this at all
window.Bootstrap = require('bootstrap');

我们可以从index.html中删除这些行以避免双重导入:

我在以下网址找到了这个解决方案:https://github.com/understrap/understrap/issues/449,来自karo1915的评论.