Heroku: Error: connect ECONNREFUSED 127.0.0.1:9222

[wbelk]

could not connect to chrome debugger after 24 tries (10s): Error: connect ECONNREFUSED 127.0.0.1:9222

this just popped up for some reason on heroku, i have legacy dynos running the same code and working perfectly. tried to add a fresh dyno and getting this error for the first time

settings are:
Stack: heroku-16
node: 8.9.0
npm: 5.5.1

[msaus]

@wbelk possibly, it is similar to this?
Cannot connect to the target: connect ECONNREFUSED 127.0.0.1:9222

[msaus]

Well...when I deploy to production environment I am getting the same error.
There are no google-chrome instances running and so I have no idea what to do next.

node: v8.12.0
npm: 6.4.1
google-chrome: 69.0.3497.100

[msaus]

I figure this out, but, this is really weird for me.

Before, start taking about how I figure this out, nodejs and pm2 are installed globally.
The reason why I have pm2 is that I used to have nodejs based API with nickjs.

■Steps to figure this out.

① Execute my old nodejs based API with 1 process.
② Create HTTP request to API from 1.
Note: nickjs should be used by the API
③The process from ① should be kept all the time in order to run nickjs, otherwise, I get the same error.

I do not know why I have to keep running my old API.
Also, I tried restaill nodejs, pm2 and Google Chrome.
But, this dose not work.

Of course, when I get this error, chrome is not up and running.

If you have any idea, please let me know.

[paps]

If I understand correctly, your NickJS script, for some reason, cannot start the chrome subprocess in your environment. But in older Heroku environments, it does work like it should.

Can you please add debug: true to your NickJS' constructor options? And report back with what it shows

In containerized/dockerized environments, starting chrome can be a pain. A simple google search shows many people having difficulties. For example chrome must be started with --no-sandbox (which NickJS does), the container should have a big shm size, etc... Maybe the newer Heroku has stricter container settings?

[elhenro]

I have the same error on Ubuntu 16.04, I tried node v8 and v11.6, chromium, chrome 70, 71,72,73(unstable).. I specified export CHROME_PATH="/usr/bin/google-chrome"; , also tried /opt/google/chrome/...

Edit: I solved it by starting chrome 71 like this: google-chrome --remote-debugging-port=9222 --no-first-run, --no-default-browser-check, and --user-data-dir

[paps]

@elhenro are you starting chrome by hand alongside NickJS?

[elhenro]

affirmative, the only way for me right now is to quit chrome completely and then start it with those options

[paps]

Can you please add debug: true to your NickJS' constructor options? And report back with what it shows? (do not start chrome by hand, I just want to see what happens on NickJS' side when it fails)

[msaus]

Sorry for late reply.
Currently, my app is running on production and I can not stop it right now.
So, when I have a chance for it, I will add debug: ture to see what happen to Nickjs.
Regards.

[bbathel12]

I'm having the same issue on windows ubuntu wsl here's the output of the debug
CHROME STDOUT: Starting ChromeDriver 74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29}) on port 9515 Only local connections are allowed. Please protect ports used by ChromeDriver and related test frameworks to prevent access by malicious code. ERROR: could not connect to chrome debugger after 8 tries (10s): Error: connect ECONNREFUSED 127.0.0.1:9222

[msaus]

@bbathel12
I guess you have to give the permission to Windows.

[msaus]

@paps
Ubuntu 16.04.5 LTS

I got following errors.

CHROME STDERR: [0412/123550.772631:ERROR:gpu_process_transport_factory.cc(980)] Lost UI shared context.
CHROME STDERR:
DevTools listening on ws://127.0.0.1:9222/devtools/browser/935baa40-9193-42d8-8709-06b781803ec7
Something went wrong: could not connect to chrome debugger after 24 tries (10s): Error: connect ECONNREFUSED ::1:9222

[msaus]

I am still getting the same error and so I have to do the follow the steps that I mentioned.
By the way, I am getting error on Ubuntu machine and I do not know what to do next.
If you can help me out, I will give you more details.

[paps]

It might be because it's a too recent version of Chrome. Can you try with Chrome 65? I know it's old but it might do the trick

[msaus]

@paps when I have a chance for that, I will switch to chrome 65.
Can it downloaded from here?
https://launchpad.net/ubuntu/+archive/primary/+sourcefiles/chromium-browser/65.0.3325.181-0ubuntu0.16.04.1/chromium-browser_65.0.3325.181.orig.tar.xz