Getting "Failed to start Selenium listener." error message while running testcafe script through saucelabs

Question

I am trying to run testcafe script through saucelabs. But getting the following error message.

MAIN failed to create listener on port 4445
MAIN possible socket error: libevent connection error
Failed to start Selenium listener. Please make sure there are no other applications using the Selenium port, or specify an alternative port for Sauce Connect via the --se-port option (exit code 2).

Answer 1

It looks like another application already used the 4445 port (see a similar discussion here).   Also, you can use the official Saucelabs Troubleshooting Guide to fix this problem.