How to deal with the browser is not defined error when trying to run Puppeteer on a RaspberryPi.
Reason
When "Puppeteer" is installed by npm, Chromium is also newly installed in node_modules, and Puppeteer uses this Chromium by default.
However, since this Chromium is for x86, I get an error trying to launch it on an ARM RaspberryPi.
How to deal with it
Set the Chronimu path to be used in the option "executablePath" of puppeteer.launch() to use the Chromium that is originally installed on the RaspberryPi.
The path of Chromium originally installed on the RaspberryPi is /usr/bin/chromium-browser.
Also, since Puppeteer has a package "puppeteer-core" that does not install Chromium, it would be better to use "puppeteer-core" instead of "puppeteer" to lighten node_modules.
Here is a sample program based on the above.
const puppeteer = require('puppeteer-core'); (async ()=>{ const browser = await puppeteer.launch({ executablePath: '/usr/bin/chromium-browser', headless: false }; const page = await browser.newPage(); await page.waitFor(5000); await browser.close(); })();
attention (heed)
Older versions of Chromium will not work with Puppeteer, so you must use the latest version of Chromium.
