Selenium::WebDriver::Error::WebDriverError (Could not find Firefox binary (os=linux). Make sure Firefox is installed or set the path manually with Selenium::WebDriver::Firefox::Binary.path=)

[PedroPauloML]

I'm really not understanding. Why this error is happing? I setted chrome as browser.

Selenium::WebDriver::Chrome.driver_path = "#{Rails.root.join('lib', 'chromedriver')}"
chrome_bin = ENV.fetch('GOOGLE_CHROME_SHIM', nil)
chrome_opts = chrome_bin ? { "chromeOptions" => { "binary" => chrome_bin } } : {}
Capybara.register_driver :chrome do |app|
   Capybara::Selenium::Driver.new(
      app,
      :chrome,
      desired_capabilities: Selenium::WebDriver::Remote::Capabilities.chrome(chrome_opts)
   )
end

@session = Capybara::Session.new(:selenium)
@session.visit("https://www.google.com/")

When I run this code, I'm receiving this error:

2018-05-10T18:51:27.040801+00:00 app[web.1]: F, [2018-05-10T18:51:27.040717 #4] FATAL -- : [a6f3abd4-eb65-4517-aaaf-c6220c4e345a] Selenium::WebDriver::Error::WebDriverError (Could not find Firefox binary (os=linux). Make sure Firefox is installed or set the path manually with Selenium::WebDriver::Firefox::Binary.path=):
2018-05-10T18:51:27.040872+00:00 app[web.1]: F, [2018-05-10T18:51:27.040795 #4] FATAL -- : [a6f3abd4-eb65-4517-aaaf-c6220c4e345a]   
2018-05-10T18:51:27.040914+00:00 app[web.1]: F, [2018-05-10T18:51:27.040875 #4] FATAL -- : [a6f3abd4-eb65-4517-aaaf-c6220c4e345a] lib/process_aet.rb:51:in `do_login'
2018-05-10T18:51:27.040916+00:00 app[web.1]: [a6f3abd4-eb65-4517-aaaf-c6220c4e345a] app/controllers/service_orders_controller.rb:131:in `process_aet'

In lib/process_aet.rb:51:

@session.visit("https://www.google.com/")

Can I help me? Why this error is occurring?

[joshwlewis]

Hey @PedroPauloML -- I think your error might come from this line:

@session = Capybara::Session.new(:selenium)

You are using the default :selenium driver, which I think defaults to Firefox. You might want to try this instead:

@session = Capybara::Session.new(:selenium)

[thomasdarde]

@PedroPauloML I think @joshwlewis wanted to say, you should try

@session = Capybara::Session.new(:chrome)

I think I'm trying to fix the same error then you , but without success at the moment.

[kaibrabo]

I have another solution worth trying:

in rails-helper.rb go to this line and change :firefox to :chrome

Capybara.register_driver :selenium do |app|
    Capybara::Selenium::Driver.new(app, :browser => :firefox)
  end

to

Capybara.register_driver :selenium do |app|
    Capybara::Selenium::Driver.new(app, :browser => :chrome)
  end

then, go to https://github.com/SeleniumHQ/selenium/wiki/ChromeDriver and run this:

brew tap homebrew/cask && brew cask install chromedriver