Cannot find module puppeteer

[Tragio]

Hi @harlan-zw 👋

As you can see in the image unlighthouse never picks puppeteer, even though it is installed globally. I'm using nvm and the path would be /Users/tragio/.nvm/versions/node/v14.19.1/lib/node_modules/ and not file:///Users/tragio, file:///Users/tragio/node_modules as stated in the error message 🤔 I wonder if the error is related to that.

Thank you for your amazing work 🙏

[zuramai]

Same here

[harlan-zw]

Hey @Tragio, @zuramai, sorry you had issues with the package.

I've made a binary that depends on puppeteer to try to get around this issue. Could someone try the below:

Using pnpm

pnpm dlx unlighthouse-puppeteer --site example.com

Using npx

npx unlighthouse-puppeteer --site example.com

[Tragio]

@harlan-zw I tried to use but still had the same error Failed to find a chrome / chromium binary to run. Add the puppeteer dependency to your project to resolve. Error: Cannot find module puppeteer imported from file:///Users/tragio, file:///Users/tragio/node_modules

[harlan-zw]

Ah damn, sorry it's not something I can replicate so just trying to fix it based on what I think the issue is.

Could you try one thing for me, install the package as a global dependencies and try run it

npm install -g unlighthouse-puppeteer

unlighthouse-puppeteer --site example.com

[Tragio]

Ah damn, sorry it's not something I can replicate so just trying to fix it based on what I think the issue is.

Could you try one thing for me, install the package as a global dependencies and try run it

npm install -g unlighthouse-puppeteer

unlighthouse-puppeteer --site example.com

Hmmm all the same, unfortunately. If you want send me DM on Twitter and we can do more tests and debug it easier.

[lasfito]

Hi, I'm getting the very same error even after trying these alternatives

[Tragio]

@harlan-zw does this help?

[LachlanArthur]

This might be caused by a different channel of Chrome being installed, so puppeteer cannot find it.

In my case, I have Chrome Dev installed.

I fixed the issue by defining the path to the Chrome executable in unlighthouse.config.ts (your Chrome path may be different to this):

export default {
	puppeteerOptions: {
		executablePath: "C:\\Program Files (x86)\\Google\\Chrome Dev\\Application\\chrome.exe"
	}
}

I've run into this problem on similar projects, so I've opened a PR on the chrome-launcher library to add detection for Beta and Dev channels.

[alex-alra-arteaga]

Make sure that you have Chrome installed and then in the same path you trigger the npx unlighthouse, do what @LachlanArthur has done.

It has worked for me