Showing Error - unknown error: DevToolsActivePort file doesn't exist - it's electron application (I am using windows OS))

Question

When I run my code it\'s showing below error - Electron application

org.openqa.selenium.WebDriverException: unknown error: DevToolsActivePort file doesn\'t e         


        

Answer 1

This error message...

org.openqa.selenium.WebDriverException: unknown error: DevToolsActivePort file doesn't exist. 
Build info: version: '3.6.0', revision: '6fbf3ec767', time: '2017-09-27T15:28:36.4Z' 
System info: host: 'DESKTOP-GN8LLQU', ip: '192.168.1.20', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '11.0.2' 
Driver info: driver.version: ChromeDriver

...implies that the ChromeDriver was unable to initiate/spawn a new WebBrowser i.e. Chrome Browser session.

Your main issue is the incompatibility between the version of the binaries you are using as follows:

• Possibly you are using the latest chromedriver=77.0
• Possibly you are using_chrome= 77.0_
• Your Selenium Client version is 3.6.0 of 2017-09-27T15:28:36.4Z which is almost 2 years older.
• Your JDK version is 11.0.2.

So there is a clear mismatch between the Selenium Client v3.6.0 , ChromeDriver v77.0 and the Chrome Browser v77.0

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Solution

Ensure that:

• Selenium is upgraded to current levels Version 3.141.59.
• ChromeDriver is updated to current ChromeDriver v77.0 level.
• Chrome is updated to current Chrome Version 77.0 level. (as per ChromeDriver v77.0 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.

Note: As per Unable to import org.openqa.selenium.WebDriver using Selenium and Java 11 it may be a better idea to downgrade to Java 8

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Outro

• WebDriverException: unknown error: DevToolsActivePort file doesn't exist while trying to initiate Chrome Browser