Question

我正在尝试创建具有自动更新功能的应用程序，但是运行版本搜索时出现错误

应用程序找到了版本，当它即将崩溃时，我会收到此错误

Error: TypeError: Cannot read property 'updaterCacheDirName' of undefined
    at NsisUpdater.getOrCreateDownloadHelper (C:\Users\neyun\Desktop\app\node_modules\electron-updater\out\AppUpdater.js:659:55)
    at async NsisUpdater.executeDownload (C:\Users\neyun\Desktop\app\node_modules\electron-updater\out\AppUpdater.js:708:36)
TypeError: Cannot read property 'updaterCacheDirName' of undefined
    at NsisUpdater.getOrCreateDownloadHelper (C:\Users\neyun\Desktop\app\node_modules\electron-updater\out\AppUpdater.js:659:55)
    at async NsisUpdater.executeDownload (C:\Users\neyun\Desktop\app\node_modules\electron-updater\out\AppUpdater.js:708:36)

我已经检查了代码的更新功能，并与Github中存储库中的其他代码进行了检查，但都等于我在应用程序菜单中的代码。

const { app, BrowserWindow, ipcMain } = require('electron');
          const { autoUpdater } = require("electron-updater");
          let token = "";
          let v = app.getVersion()
          autoUpdater.allowPrerelease = true;
          autoUpdater.currentVersion = v;
          autoUpdater.logger = log;
          autoUpdater.autoDownload = false
          autoUpdater.setFeedURL({
            "provider": "github",
            "owner": "",
            //"token": token, //deleted 
            "private":true,
            "repo": ""
          });
          autoUpdater.logger.transports.file.level = 'info';
          log.info('App starting...');
          function createWindow () {
            mainWindow = new BrowserWindow({
              width: 800,
              height: 600,
              webPreferences: {
                nodeIntegration: true,
              },
            });
            mainWindow.loadURL(`file://${__dirname}/public/update.html`);
            mainWindow.setMenu(null)
            mainWindow.on('closed', function () {
              mainWindow = null;
            });
            autoUpdater.checkForUpdates();



          }


          createWindow();



          app.on('window-all-closed', function () {
            if (process.platform !== 'darwin') {
              app.quit();
            }
          });

          app.on('activate', function () {
            if (mainWindow === null) {
              createWindow();
            }
          });

          ipcMain.on('app_version', (event) => {
            event.sender.send('app_version', { version: app.getVersion() });
          });

          autoUpdater.on('update-available', () => {
            mainWindow.webContents.send('update_available');
            autoUpdater.downloadUpdate().then((path)=>{
              console.log('download path', path)
            }).catch((e)=>{
              console.log(e)
            })
          });

          autoUpdater.on('update-downloaded', () => {
            autoUpdater.autoInstallOnAppQuit()
          });
          autoUpdater.on('checking-for-update', () => {
            mainWindow.webContents.send('check_update');
          });
          autoUpdater.on('update-not-available', () => {
            mainWindow.webContents.send('not_update');
          });
          ipcMain.on('restart_app', () => {


          });

这是html，其中同时显示版本和警告，是否有新版本

<!DOCTYPE html>
<head>
  <title>Update</title>
  <style>
    body {
      box-sizing: border-box;
      margin: 0;
      padding: 20px;
      font-family: sans-serif;
      background-color: #eaeaea;
      text-align: center;
    }
    #notification {
      position: fixed;
      bottom: 20px;
      left: 20px;
      width: 200px;
      padding: 20px;
      border-radius: 5px;
      background-color: white;
      box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    }
    .hidden {
      display: none;
    }
  </style>
</head>
<body>
  <h1>app</h1>
  <span><p>Version:</p> <p id="version"></p></span>
  <div id="notification" class="hidden">
    <p id="message"></p>

    <button id="close-button" onClick="closeNotification()">
      Close
    </button>
    <button id="restart-button" onClick="restartApp()" class="hidden">
      Restart
    </button>
  </div>
  <script>
    const { ipcRenderer } = require('electron');
    const version = document.getElementById('version');
    const notification = document.getElementById('notification');
    const message = document.getElementById('message');
    const restartButton = document.getElementById('restart-button');

    ipcRenderer.send('app_version');
    ipcRenderer.on('app_version', (event, arg) => {
      ipcRenderer.removeAllListeners('app_version');
      version.innerText = 'Version ' + arg.version;
    });
    ipcRenderer.on('update_available', () => {
      ipcRenderer.removeAllListeners('update_available');
      message.innerText = 'A new update is available. Downloading now...';
      notification.classList.remove('hidden');
    });
    ipcRenderer.on('check_update', () => {
      ipcRenderer.removeAllListeners('check_update');
      message.innerText = 'Looking for update...';
      notification.classList.remove('hidden');
    });
    ipcRenderer.on('not_update', () => {
      ipcRenderer.removeAllListeners('not_update');
      message.innerText = 'update not available...';
      notification.classList.remove('hidden');
    });
    ipcRenderer.on('update_downloaded', () => {
      ipcRenderer.removeAllListeners('update_downloaded');
      message.innerText = 'Update Downloaded. It will be installed on restart. Restart now?';
      restartButton.classList.remove('hidden');
      notification.classList.remove('hidden');
    });
    function closeNotification() {
      notification.classList.add('hidden');
    }

    function restartApp() {
      ipcRenderer.send('restart_app');
    }
  </script>
</body>

Answer 1

您是否在未打包应用程序的情况下在开发模式下测试了自动更新功能？

我有同样的错误，以下解决方案对我有用。

看看documentation：

请注意，为了在不打包应用程序的情况下开发/测试更新的UI / UX，您需要有一个名为dev-app-update.yml的文件

在这种情况下，请在根目录中创建一个“ dev-app-update.yml”文件，并以yaml格式提供来自package.json的发布属性。

dev-app-update.yml

provider:"github"
owner: "abc"

错误无法读取未定义的属性“ updaterCacheDirName”

1 个答案: