Cannot find module 'playwright-core'

[BusDriver01]

Thank you for this library, I have found playwright to be superior to puppeteer and would prefer to use it on AWS.

Unfortunately currently I am getting an error whenever I try to use it, including the simple demo code in the README.

internal/modules/cjs/loader.js:638                                                        
    throw err;                                                                            
    ^                                                                                     
                                                                                          
Error: Cannot find module 'playwright-core'                                               
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)           
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)                      
    at Module.require (internal/modules/cjs/loader.js:692:17)                             
    at require (internal/modules/cjs/helpers.js:25:18)                                    
    at Object.<anonymous> (E:\Nodejs\AllTheComps\playwright\dev\node_modules\playwright-aws-lambda\dist\src\chromium.js:5:20)                                                       
    at Module._compile (internal/modules/cjs/loader.js:778:30)                            
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)              
    at Module.load (internal/modules/cjs/loader.js:653:32)                                
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)                              
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)                       

The offending line is:
const playwright = require("playwright-core");

I'm developing on Windows but this happened on Lambda as well. I have npm install'd playwright-core, it definitely exists in node_modules

[austinkelleher]

@BusDriver01 playwright-core is a peer dependency, so it does not come packaged with this module. Can you make sure that you installed it into your project as a direct dependency and not a dev dependency? Are you bundling your lambda somehow?

[BusDriver01]

I installed both modules via npm: npm install playwright-core playwright-aws-lambda --save

Previously I had installed the full playwright -- could that be causing a conflict?

In node_modules, there are 3 related directories: playwright, playwright-aws-lambda, and playwright-core

[dev7machine]

Having the same issue.

[sanudatta11]

Anyone found a solution for this? Facing same issue

[sanudatta11]

This error is due to the issue in the core package. In version 1.1.0 the playwright-core package does not contain anymore a valid index.js / entrypoint.

1.0.2: https://unpkg.com/playwright-core@1.0.2/index.js <-- expected
1.1.0: https://unpkg.com/playwright-core@1.1.0/index.js <-- actual

[sanudatta11]

Temporary Solution is to downgrade to 1.0.2

[austinkelleher]

@sanudatta11 thanks for looking into this. Disappointing that the Playwright team shipped a breaking change like this in a minor version...The reason I chose to use playwright-core originally is to avoid the browser(s) post install process in the main playwright package. The playwright-core package only contained the core JS logic used to drive the underlying browsers.

[BusDriver01]

Was going to write that this bug has been reported at playwright but I see you've participated in that thread already. Hope we'll see a fix very soon, the PR has been submitted. Thanks again @austinkelleher and @sanudatta11 !