[Solved] selenium.common.exceptions.WebDriverException: Message: unknown error: DevToolsActivePort file doesn

1. Phenomenon: Jenkins cannot call out the browser page when building selenium, and Jenkins reports an error when building selenium: selenium.common.exceptions WebDriverException: Message: unknown error: DevToolsActivePort file doesn’t exist

2. Troubleshooting: run the project code directly under the Jenkins working directory, call out the browser normally, and the use case execution is completed

3. Reason: after Jenkins is built, the default node for running automation cases is the master, and the processes running on the master are background processes, so you can’t see the browser running interface

4. Solution:

① build the project in a graph free way
② add a slave node to Jenkins and point the project construction node to slave