I’m having trouble with my Puppeteer code after switching from my desktop to my laptop. Every time I try to run a script, I get this error:
UnhandledPromiseRejectionWarning: TimeoutError: Timed out after 30000 ms while trying to connect to the browser! Only Chrome at revision r901912 is guaranteed to work.
The error message goes on to mention some stuff about unhandled promise rejections and deprecation warnings. I’m not sure what’s causing this. Maybe it’s because of the different environment on my laptop? Has anyone run into this issue before? Any ideas on how to fix it?
I’ve double-checked my code and it works fine on my desktop. I’m using the latest version of Puppeteer and Node.js. Could it be a problem with Chrome on my laptop? Or maybe there’s some network issue preventing Puppeteer from connecting to the browser? Any help would be really appreciated!
Hey there, I’ve dealt with this annoying timeout issue before. It’s often related to environment differences between machines. Here’s what worked for me:
First, try increasing the timeout in your launch options. Something like:
This gives Puppeteer more time to connect, especially on slower systems.
If that doesn’t work, check your Chromium version. Puppeteer can be picky about versions. You might need to specify the Chrome executable path explicitly by setting the PUPPETEER_EXECUTABLE_PATH environment variable or passing it in your launch options.
Also, don’t forget to check your firewall settings. They can sometimes block Puppeteer without you realizing it.
Lastly, make sure both Puppeteer and Node.js are up to date on your laptop. Outdated versions can cause unexpected problems.
I’ve run into similar issues when switching between machines. In my experience, it often boils down to Chromium version mismatches or permission problems.
One thing that worked for me was explicitly specifying the Chrome executable path. You can do this by setting the PUPPETEER_EXECUTABLE_PATH environment variable or passing it directly in your launch options.
Another trick I found helpful was increasing the timeout. Sometimes networks or slower machines just need more time. Try something like: