org.openqa.selenium.WebDriverException: chrome not reachable – when attempting to start a new session

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The error does gives us some hint as follows :

org.openqa.selenium.WebDriverException: chrome not reachable

Which essentially implies that chromedriver binary is unable to spawn a new Chrome Browser process.

Your main issue is the version compatibility among the binaries you are using as follows :

  • You are using chromedriver=2.35.528161 (released 2018-01-10)
  • Release Notes of chromedriver=2.35 clearly mentions the following :

Supports Chrome v62-64

  • You mentioned of using latest Chrome. I suppose it is chrome=65.x
  • You are using Selenium Version 2.52.0 (released 2016-02-11 11:22:43) [as per the error stack trace within your question]

So the time gap between the release of Selenium Version 2.52.0 and chromedriver=2.35.528161 is almost 2 Years and are not compatible. Hence ChromeDriver is unable to spawn the new Chrome Browser process at times.

Solution

  • Keep the ChromeDriver at v2.35 level.
  • Downgrade Chrome to stable Chrome v64.x levels. (as per ChromeDriver v2.35 release notes)
  • Upgrade Selenium to current levels Version 3.8.1.
  • Execute your Test.

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