Cannot connect to chrome at localhost:22020 error using SetExperimentalOption debuggerAddress as localhost:22020

Question

I'm having real trouble to switch control from desktop application using let to a chrome web browser using selenium.

Here is what I have done:

I'm having an issue connecting to chrome debug port .

Added

options.SetExperimentalOption("debuggerAddress", "localhost:22020")

But chrome keeps starting from a random port numbers , and I'm getting the following error:

cannot connect to chrome at localhost:22020

Please help

I would use another port... that one could be in use. – pcalkins Nov 20 '21 at 00:31 — pcalkins, Nov 20 '21 at 00:31

score 0 · Answer 1 · answered Nov 20 '21 at 22:42

While starting a Selenium driven ChromeDriver initiated google-chrome Browsing Context using:

options.SetExperimentalOption("debuggerAddress", "localhost:22020")

this error message...

cannot connect to chrome at localhost:22020

...can occur due to a lot of reasons.

An immediate solution would be to shift from hostname:port to ip:port as follows:

options.SetExperimentalOption("debuggerAddress", "127.0.0.1:22020")

Some of the known reasons are:

Port 22020 which may be blocked by some other services.
Your system have security software installed that is listening on this port or using network web filtering.

1 Answers1