getting error DeprecationWarning: Unhandled promise rejections are deprecated. in node js - node.js

Question

i have create test.js file, and installed one npm library, when i run the file i am getting below error, i tried to use npm i puppeteer this library but i am getting error when i tried to install it, so i used this library npm i puppeteer-core
(node:30075) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:30075) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
here is my full code for test.js file
const puppeteer = require('puppeteer-core');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://example.com');
await page.screenshot({path: 'example.png'});
await browser.close();
})();
can anyone please help me why i am getting this error ?

Answer 1

When using async/await, it is recommended to use try/catch catch the error, and to figure out what's wrong.
(async () => {
try {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://example.com');
await page.screenshot({path: 'example.png'});
await browser.close();
} catch (error) {
console.log('error', error);
// Do whatever you want, throw the error again if you want but it will just produce `UnhandledPromiseRejectionWarning` again, if you throw it again.
}
})();