WebdriverIO - Test fails with error Openfin - google-chrome

Question

I have been trying to setup automation testing for our openfin application using the below repo as base
https://github.com/openfin/webinar-automated-integration-tests
I am using Openfin (Chrome version 61.0.3163.100) and Chromedriver 2.40.565498
When I run "npm test", the openfin application opens up. But the tests don't run. After waiting for sometime, it throws the below error in console.
ERROR: unknown error: DevToolsActivePort file doesn't exist
(Driver info: chromedriver=2.40.565498 (ea082db3280dd6843ebfb08a625e3eb905c4f5ab),platform=Windows NT 10.0.16299 x86_64)
chrome
I tried using other versions of chromedriver like 2.33, 2.34, 2.37, 2.38, 2.39, 2.41. Using these versions even the application doesn't appear. So, I guess the chromedriver version I am using is correct. I have also tried adding the below arguments to chromeOptions
--remote-debugging-port=9222,--no-sandbox,--headless,--disable-gpu
They didn't solve my issue. Not sure what is causing the issue. Any help would be much appreciated. Thanks in advance. Cheers!

Answer 1

This error message...
ERROR: unknown error: DevToolsActivePort file doesn't exist
(Driver info: chromedriver=2.40.565498 (ea082db3280dd6843ebfb08a625e3eb905c4f5ab),platform=Windows NT 10.0.16299 x86_64)
...implies that the ChromeDriver was unable to initiate/spawn a new Browsing Context i.e. Chrome Browser session.
Your main issue is the incompatibility between the version of the binaries you are using as follows:
You are using chromedriver=2.40
Release Notes of chromedriver=2.40 clearly mentions the following :
Supports Chrome v66-68
Presumably you are using chrome=61.0
Release Notes of ChromeDriver v2.33 clearly mentions the following :
Supports Chrome 60-62
Your Selenium Client version is unknown to us.
So there is a clear mismatch between ChromeDriver v2.40 and the Chrome Browser v60.0
Solution
Ensure that:
Selenium is upgraded to current levels Version 3.141.59.
ChromeDriver is updated to current ChromeDriver v80.0 level.
Chrome is updated to current Chrome Version 80.0 level. (as per ChromeDriver v80.0 release notes)
Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
If your base Web Client version is too old, then uninstall it and install a recent GA and released version of Web Client.
Take a System Reboot.
Execute your #Test as non-root user.
Always invoke driver.quit() within tearDown(){} method to close & destroy the WebDriver and Web Client instances gracefully.