[Bug] Page undefined error occurs sometimes

Hello, thank you for your work!

I’ve been using puppeteer-stream for over a month now and it works perfectly.

However, sometimes it gives the following error at the starting of the code.

(node:20) UnhandledPromiseRejectionWarning: TypeError: Cannot read property ‘page’ of undefined at /app/node_modules/puppeteer-stream/dist/PuppeteerStream.js:79:63 at Generator.next (<anonymous>) at fulfilled (/app/node_modules/puppeteer-stream/dist/PuppeteerStream.js:5:58) at processTicksAndRejections (internal/process/task_queues.js:95:5)

What can be the reason for this error? And why does it come only once in almost 100 tries? Please let me know how to deal with kind of error?

I believe the error comes because the browser has not started properly.

Thanks again!

PS: The code where the error comes. const browser = await launch({ defaultViewport: null, headless: true, args: [ "--autoplay-policy=no-user-gesture-required", '--start-fullscreen', '--no-sandbox', ], }); const page = await browser.newPage(); await page.setViewport({ width: 1400, height: 800}); const navigationPromise = page.waitForNavigation();

[SamuelScheit]

https://stackoverflow.com/questions/59979188/error-failed-to-launch-the-browser-process-puppeteer

[amazing-tomotoshi]

this error occurred. (node:21) UnhandledPromiseRejectionWarning: Error: Failed to launch the browser process!

this is our code.

const browser = await launch({
        // userDataDir: "./Default_3",
        defaultViewport: null,
        headless: true,
        //ignoreDefaultArgs: "--mute-audio",
        args: [
          "--autoplay-policy=no-user-gesture-required",
          '--start-fullscreen',
          '--no-sandbox',
        ],
    });

What can be the reason for this error?