gilzonme

const puppeteer = require('puppeteer'); // Install puppeteer from https://www.npmjs.com/package/puppeteer

(async () => {
  const browser = await puppeteer.launch({headless:false, // `true` if you want to run in headless mode and hidden
    defaultViewport:{
        width: 1080, // adjust as required
        height: 720 // adjust as required
    }});
  const page = await browser.newPage();
  await page.goto('https://google.com');

gilzonme

This error is basically due to entries in the sources.list file.
Open /etc/apt/ using following command:
cd /etc/apt/

Open the sources.list file using:

sudo nano sources.list 

Now paste the following code at the last line of the file:

gilzonme

<select id="countries" value="countries">
<option value="" selected="True">Select Country</option>
<option value="AF">Afghanistan</option>
<option value="AL">Albania</option>
<option value="DZ">Algeria</option>
<option value="AS">American Samoa</option>
<option value="AD">Andorra</option>
<option value="AO">Angola</option>
<option value="AI">Anguilla</option>
<option value="AQ">Antarctica</option>