Why is Puppeteer-Extra's solveRecaptchas() "not a function"?

I am attempting to use Puppeteer and puppeteer-extra-plugin-recaptcha through Apify to solve the Recaptcha on a login page.

In time, I will want to do the full login. For now, I am attempting to do the Recaptcha solution, using Google's demo. puppeteer-extra-plugin-recaptcha taps up the 2captcha service via API key to do the solving.

Unfortunately, in my code, the important solveRecaptchas() throws an error:

TypeError: page.solveRecaptchas is not a function

Full error:

2021-10-17T10:04:54.502Z ERROR PuppeteerCrawler: handleRequestFunction failed, reclaiming failed request back to the list or queue {"url":"https://www.google.com/recaptcha/api2/demo","retryCount":1,"id":"ylMuptksDTSkKJl"}
2021-10-17T10:04:54.504Z   TypeError: page.solveRecaptchas is not a function
2021-10-17T10:04:54.505Z       at PuppeteerCrawler.handlePageFunction (/home/myuser/main.js:85:28)
2021-10-17T10:04:54.507Z       at PuppeteerCrawler._handleRequestFunction (/home/myuser/node_modules/apify/build/crawlers/browser_crawler.js:324:52)
2021-10-17T10:04:54.509Z       at processTicksAndRejections (node:internal/process/task_queues:96:5)
2021-10-17T10:04:54.511Z       at async PuppeteerCrawler._runTaskFunction (/home/myuser/node_modules/apify/build/crawlers/basic_crawler.js:431:13)
2021-10-17T10:04:54.513Z       at async AutoscaledPool._maybeRunTask (/home/myuser/node_modules/apify/build/autoscaling/autoscaled_pool.js:408:17)

My code:

/**************************************/
/*          Setup requires            */
/**************************************/
const Apify = require("apify");
const puppeteer = require("puppeteer-extra");
const PuppeteerExtraPluginRecaptcha = require("puppeteer-extra-plugin-recaptcha");
const StealthPlugin = require("puppeteer-extra-plugin-stealth");
// puppeteer.use(StealthPlugin()); // Should this be used?



/**************************************/
/*          Use Recaptcha             */
/**************************************/
function addPlugins() {
  const captchaOptions = {
    provider: {
      id: "2captcha",
      token: "my-2captcha-api-key",
    },
    solveInactiveChallenges: true,
    visualFeedback: true,
  };
  puppeteer.use(PuppeteerExtraPluginRecaptcha(captchaOptions));
}



/**************************************/
/*           Through Apify?           */
/**************************************/
Apify.main(
    async () => {

    /**************************************/
    /*             Cue up URL             */
    /**************************************/
    // Is this what to do and where to do it?
    // cf. https://reposhub.com/nodejs/http/apifytech-apify-js.html
    const requestQueue = await Apify.openRequestQueue();
    await requestQueue.addRequest(
        {
            url: "https://www.google.com/recaptcha/api2/demo",
        }
    );
    // const pseudoUrls = [new Apify.PseudoUrl('https://www.iana.org/[.*]')];


    /**************************************/
    /*         Puppeteer Crawler          */
    /**************************************/
    const crawler = new Apify.PuppeteerCrawler(
        {
            requestQueue,
            launchContext: {
            launcher: puppeteer,
            launchOptions: {
                devtools: false,
                headless: false,
                ignoreHTTPSErrors: true,
                defaultViewport: { width: 1366, height: 768 },
                timeout: 60 * 1000,
                args: [
                "--no-sandbox",
                "--disable-web-security",
                "--disable-setuid-sandbox",
                "--disable-features=IsolateOrigins,site-per-process",
                "--flag-switches-begin --disable-site-isolation-trials --flag-switches-end",
                ],
            },
        },
        handlePageFunction: async ({ request, page }) => {

            // ...some code
            // Should URL be enqueued here, not above?
           
            // solve captcha (if one exists)
            await page.solveRecaptchas(); // https://github.com/berstend/puppeteer-extra/issues/184
            
            // additional code

        },
    });

    await crawler.run();

    }
);

Possible causes I have read about include:

• Not defining details for the solving plugin - notably, the API key - but I seem to have done so.
• Something about different methods for solving in pre-existing browser pages (doesn't seem relevant?).
• Possible impact of iFrame. But, when I loop to get any child frames, I still get the error.

This might be an omission from the example you provided, but it seems that you're not calling the addPlugins() function anywhere and therefore the plugin is not used at all.