Session not created exception: Chrome version must be >= x.y.z when using Selenium Webdriver with Chrome

问题

A few notes that make this tricky are that I'm using c9.io (developing in the cloud) so I use the gem webdrivers to be able to run Chrome with Watir, instead of creating an executable path to the Chrome installed on my device.

My code was working until I logged in today and got the error

session not created exception: Chrome version must be >= 64.0.3282.0 (Driver info: chromedriver=2.37.543610 (afd36256570660b5a2f0e4dbd1b040f3dcfe9cb5),platform=Linux 4.9.80-c9 x86_64)

Relevant parts of gemfile (everything else is stock)

gem 'webdrivers'

gem 'watir'

Code I'm trying to compile

def mastersave
    require 'watir'
    @browser = Watir::Browser.new :chrome, headless: true
end

I'm not stuck on the idea of using Chrome, but it's what was working for me. The gem 'webdrivers' also allows me to use firefox, but I get the error 'permission denied' with that.

回答1:

This error message…

session not created exception: Chrome version must be >= 64.0.3282.0 (Driver info: chromedriver=2.37.543610 (afd36256570660b5a2f0e4dbd1b040f3dcfe9cb5),platform=Linux 4.9.80-c9 x86_64)

…implies that Chrome version must be >= 64.0

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

You are using chromedriver=2.37 which is still not GA hence we are not sure about the dependencies but from the error message its clear it won't be supporting Chrome v64.x

Solution

To be safer you can:
- Either downgrade to chromedriver=2.36 where the Release Notes mentions Supports Chrome v63-65
- Or upgrade to chrome=65.x
Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
Use CCleaner tool to wipe off all the OS chores before and after the execution of your test Suite.
If your base Chrome version is too old, then uninstall it through Revo Uninstaller and install a recent GA and released version of Chrome.
Execute your @Test.

回答2:

For those that have just had this problem going from Chrome 73 to 74 it might be because you are using chromedriver-helper. Apparently the chromedriver-helper gem was deprecated. I switched to using the webdrivers gem and it fixed the issue.

In Gemfile replace: gem 'chromedriver-helper'

With: gem 'webdrivers', '~> 3.0'

bundle install