Couldn't connect to selenium server to execute a webdriverIO test - selenium

Question

i,m having a runtime error when i execute a webdriverIO test by console.
this is the error Couldn't connect to selenium server to execute a webdriverIO test.
I can access to my selenium server by browser (http://localhost:4444/wd/hub/static/resource/hub.html) but its still not working.
Please, can anyone help me.
thanks a lot for the help.

Answer 1

Have you tried this solution?
https://github.com/webdriverio/webdriverio/issues/602
Specifically, adding:
var options = {
desiredCapabilities: {
browserName: 'chrome'
},
host: 'localhost',
port: 4444
};
Worked for me.

Answer 2

Very long time after, but I faced this issue with Appium and I'd like to share what I find to solve it in case someone else face it with Appium.
Open Appium server application and start the server with host: 127.0.0.1 and port: 4723.
Open your Emulator or connect device.
Run again the instruction to execute it.

Answer 3

As per the docs:
Handling the Selenium server is out of scope of the actual WebdriverIO project.
So we need to either go with raw ChromeDriver or spin up the Selenium grid. When running with the latter and setting
WebDriver: {
url: '<your-vaue-here>',
browser: 'chrome',
host: '127.0.0.1',
port: 4444,
...
don't forget to disable the codecept.config.js section, like this:
services: [
['']
],
...
Otherwise both servers will try to use http://localhost:4444.
Caveat:
When executing codeceptJS tests in parallel via run-workers I observe flaky behaviour as some threads actually kill the Selenium grid while others are still running. To resolve this issue, disable the services section and run a dedicated Grid server as initial step in your CI pipeline (assuming this is the place you actually need the parallelism).