Error: connect ECONNREFUSED 127.0.0.1:19874

[dotnetdreamer]

Got error with the following code:

const logger = require('./src/utils/logger');
const path = require('path');

// Use chrome-launcher and connect to it with puppeteer
(async () => {
  try {
    logger.info('[outlook-screenshot.js] Launching Chrome using chrome-launcher...', { fileName: 'outlook-screenshot.js' });
    
    // Dynamically import chrome-launcher
    const { launch } = await import('chrome-launcher');
    
    // Launch Chrome with chrome-launcher using Promise chain instead of await
    launch({
      startingUrl: 'https://outlook.office.com/calendar/view/month',
      chromeFlags: [
      // '--disable-extensions',
      '--new-window'
      ],
      ignoreDefaultFlags: true,
      logLevel: 'verbose',
      userDataDir: 'C:\\Users\\idrees.khan1\\AppData\\Local\\Google\\Chrome\\User Data'
    })
    .then(chrome => {
      logger.info(`[outlook-screenshot.js] Chrome launched with PID: ${chrome.pid} on port ${chrome.port}`, { fileName: 'outlook-screenshot.js' });
      
      // Wait for Chrome to load the page
      return new Promise(resolve => setTimeout(() => resolve(chrome), 10000));
    })
    .then(chrome => {
      // Wait longer for Chrome to fully initialize and establish debugging server
      logger.info('[outlook-screenshot.js] Waiting for Chrome debugging port to be available...', { fileName: 'outlook-screenshot.js' });
      let portAvailable = false;
      let maxRetries = 10;
      
      (async function checkPort() {
        for (let i = 0; i < maxRetries; i++) {
          try {
            // Check if the port is accessible
            await new Promise((resolve, reject) => {
              const net = require('net');
              const socket = net.connect(chrome.port, '127.0.0.1');
              
              socket.on('connect', () => {
                socket.end();
                portAvailable = true;
                resolve();
              });
              
              socket.on('error', reject);
              
              // Set timeout for connection attempt
              setTimeout(() => {
                socket.destroy();
                reject(new Error('Connection timeout'));
              }, 1000);
            });
            
            if (portAvailable) {
              logger.info(`[outlook-screenshot.js] Chrome debugging port ${chrome.port} is now available`, { fileName: 'outlook-screenshot.js' });
              break;
            }
          } catch (err) {
            logger.warn(`[outlook-screenshot.js] Chrome debugging port not ready yet, retrying (${i+1}/${maxRetries})...`, { fileName: 'outlook-screenshot.js' });
            await new Promise(resolve => setTimeout(resolve, 2000));
          }
        }
        
        if (!portAvailable) {
          throw new Error(`Chrome debugging port ${chrome.port} is not accessible after multiple attempts`);
        }
        
        // Now connect to Chrome with puppeteer using the chrome-launcher's port
        logger.info('[outlook-screenshot.js] Connecting to Chrome with puppeteer...', { fileName: 'outlook-screenshot.js' });
        const puppeteer = require('puppeteer-core');
        
        // Connect to the Chrome instance that chrome-launcher started
        const browser = await puppeteer.connect({
          browserURL: `http://localhost:${chrome.port}`,
          defaultViewport: { width: 1920, height: 1080 }
        });
        
        // Get the pages and use the first one (or create a new one)
        const pages = await browser.pages();
        const page = pages[0] || await browser.newPage();
        
        // Navigate to Outlook (if not already there)
        logger.info('[outlook-screenshot.js] Navigating to Outlook...', { fileName: 'outlook-screenshot.js' });
        await page.goto('https://outlook.office.com/calendar/view/month', { waitUntil: 'networkidle2' });
        
        // Wait a bit more to ensure dynamic content loads
        await new Promise(resolve => setTimeout(resolve, 5000));
        
        // Take a screenshot
        logger.info('[outlook-screenshot.js] Taking screenshot...', { fileName: 'outlook-screenshot.js' });
        const screenshotPath = path.join(__dirname, 'outlook.png');
        await page.screenshot({ path: screenshotPath, fullPage: true });
        
        logger.info(`[outlook-screenshot.js] Screenshot saved to: ${screenshotPath}`, { fileName: 'outlook-screenshot.js' });
        
        // Disconnect from puppeteer (this doesn't close Chrome)
        await browser.disconnect();
        
        // Kill Chrome using chrome-launcher
        await chrome.kill();
        logger.info('[outlook-screenshot.js] Chrome closed.', { fileName: 'outlook-screenshot.js' });
        
      })();
    });

  } catch (err) {
    logger.error('[outlook-screenshot.js] Error occurred', { error: err.message, stack: err.stack, fileName: 'outlook-screenshot.js' });
    process.exit(1);
  }
})();

Mon, 12 May 2025 14:02:49 GMT LH:ChromeLauncher Waiting for browser.................................................................................
Mon, 12 May 2025 14:02:50 GMT LH:ChromeLauncher Waiting for browser...................................................................................
Mon, 12 May 2025 14:02:50 GMT LH:ChromeLauncher Waiting for browser.....................................................................................
Mon, 12 May 2025 14:02:51 GMT LH:ChromeLauncher Waiting for browser.......................................................................................
Mon, 12 May 2025 14:02:51 GMT LH:ChromeLauncher Waiting for browser.........................................................................................
Mon, 12 May 2025 14:02:52 GMT LH:ChromeLauncher Waiting for browser...........................................................................................
Mon, 12 May 2025 14:02:52 GMT LH:ChromeLauncher Waiting for browser.............................................................................................
Mon, 12 May 2025 14:02:53 GMT LH:ChromeLauncher Waiting for browser...............................................................................................
Mon, 12 May 2025 14:02:53 GMT LH:ChromeLauncher Waiting for browser.................................................................................................
Mon, 12 May 2025 14:02:54 GMT LH:ChromeLauncher Waiting for browser...................................................................................................
Mon, 12 May 2025 14:02:54 GMT LH:ChromeLauncher Waiting for browser.....................................................................................................
Mon, 12 May 2025 14:02:55 GMT LH:ChromeLauncher Waiting for browser.......................................................................................................
Mon, 12 May 2025 14:02:55 GMT LH:ChromeLauncher:error connect ECONNREFUSED 127.0.0.1:19874
Mon, 12 May 2025 14:02:55 GMT LH:ChromeLauncher:error Logging contents of C:\Users\idrees.khan1\AppData\Local\Google\Chrome\User Data/chrome-err.log
Mon, 12 May 2025 14:02:55 GMT LH:ChromeLauncher:error
node:internal/process/promises:391
    triggerUncaughtException(err, true /* fromPromise */);
    ^

Error: connect ECONNREFUSED 127.0.0.1:19874
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1607:16) {
  errno: -4078,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 19874
}

Node.js v20.18.0

[rares-baesu-uipath]

I have the same issue here: #349

[andreihodoroaga]

Since Chrome 136, you need to specify a userDataDir flag that's different from the default one, based on this snippet from https://support.google.com/chrome/a/answer/7679408?hl=eN#top:

Remote debugging via a TCP port or a pipe is no longer possible in Google Chrome with the default data directory on Windows, Linux, and macOS. A custom data directory must be specified to remotely debug Google Chrome using the --user-data-dir