WSL - Doesn't appear to Install Chromium

Using ~WSL~ WSL 2 on Windows 10 does not appear to install any browser when I yarn install. I have not tested it on WSL 1.

Running your reference examples results in:

$yarn install
yarn install v1.21.1
[1/4] Resolving packages...
success Already up-to-date.
Done in 0.07s.
() /.../playwright $node main.js 
(node:1704) UnhandledPromiseRejectionWarning: Error: Chromium revision is not downloaded. Run "npm install" or "yarn install"
    at CRPlaywright.launchServer (/home/-/playwright/node_modules/playwright-core/lib/server/crPlaywright.js:87:23)
    at async CRPlaywright.launch (/home/-/playwright/node_modules/playwright-core/lib/server/crPlaywright.js:64:24)
    at async /home/-/playwright/main.js:4:21
  -- ASYNC --
    at CRPlaywright.<anonymous> (/home/-/playwright/node_modules/playwright-core/lib/helper.js:54:23)
    at CRPlaywright.launch (/home/-/playwright/node_modules/playwright-core/lib/server/crPlaywright.js:64:35)
    at CRPlaywright.<anonymous> (/home/-/playwright/node_modules/playwright-core/lib/helper.js:55:31)
    at /home/-/playwright/main.js:4:38
    at Object.<anonymous> (/home/-/playwright/main.js:9:3)
    at Module._compile (internal/modules/cjs/loader.js:959:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:995:10)
    at Module.load (internal/modules/cjs/loader.js:815:32)
    at Function.Module._load (internal/modules/cjs/loader.js:727:14)
    at Function.Module.runMain (internal/modules/cjs/loader.js:1047:10)
  -- ASYNC --
    at CRPlaywright.<anonymous> (/home/-/playwright/node_modules/playwright-core/lib/helper.js:54:23)
    at /home/-/playwright/main.js:4:38
    at Object.<anonymous> (/home/-/playwright/main.js:9:3)
    at Module._compile (internal/modules/cjs/loader.js:959:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:995:10)
    at Module.load (internal/modules/cjs/loader.js:815:32)
    at Function.Module._load (internal/modules/cjs/loader.js:727:14)
    at Function.Module.runMain (internal/modules/cjs/loader.js:1047:10)
    at internal/main/run_main_module.js:17:11
(node:1704) 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:1704) [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.

// package.json
{
  "name": "playwright",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "dependencies": {
    "@types/node": "^13.1.8",
    "playwright": "^0.9.21"
  }
}

// main.ts
const playwright = require('playwright').chromium;  // Or 'firefox' or 'webkit'.

(async () => {
  const browser = await playwright.launch();
  const context = await browser.newContext();
  const page = await context.newPage('http://example.com');
  // other actions...
  await browser.close();
})();

Compiles to

"use strict";
// main.ts
const playwright = require('playwright').chromium; // Or 'firefox' or 'webkit'.
(async () => {
    const browser = await playwright.launch();
    const context = await browser.newContext();
    const page = await context.newPage('http://example.com');
    // other actions...
    await browser.close();
})();

[enjikaka]

I am seeing this on macOS as well. The problem here is Yarn not installing the browsers; while npm install does.

[Keeady]

For mac OS, running node node_modules/playwright/install.js installed the browsers and resolved my issue. I couldn’t run npm because I was in yarn exclusive environment.