Ruby-on-rails 无法连接到 chromedriver

unable to connect to chromedriver

提问by tsinghan

I use capybara & selenium test my rails project. when i execute the test script,it's has errors likes this

我使用水豚和硒测试我的 rails 项目。当我执行测试脚本时，它有这样的错误

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

I google how to use Google Chrome as the testing browser instead of Firefox

我在谷歌搜索如何使用 Google Chrome 而不是 Firefox 作为测试浏览器

but it occurs other errors likes

但它会发生其他错误，例如

Selenium::WebDriver::Error::WebDriverError:
   unable to connect to chromedriver http://127.0.0.1:9515

回答by Jeremy

I had the exact same issue. What worked for me was using the "chromedriver-helper" gem. Part of my gemfile looks like this:

我有完全相同的问题。对我有用的是使用“chromedriver-helper” gem。我的 gemfile 的一部分看起来像这样：

group :development, :test do
  gem 'rspec-rails'
  gem 'capybara'
  gem 'selenium-webdriver'
  gem 'chromedriver-helper'
end

回答by Mikhail Chuprynski

On Mac OS

在 Mac 操作系统上

It works fine with watir-webdriver and Safari

它适用于 watir-webdriver 和 Safari

browser = Watir::Browser.new :safari

If you'd like to use Chrome, make sure that it is installed, plus you need to install mac os developer tools with

如果你想使用 Chrome，请确保它已安装，另外你需要安装 mac os 开发者工具

xcode-select --install

and also install chromedriver with brew

并使用 brew 安装 chromedriver

brew install chromedriver

On Linux

在 Linux 上

I had the same error on my staging Ubuntu 12.04 server and the problem was I didn't install chrome itself like this (with superuser permissions):

我在临时 Ubuntu 12.04 服务器上遇到了同样的错误，问题是我没有像这样安装 chrome 本身（具有超级用户权限）：

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
apt-get update
apt-get install google-chrome-stable

Install chromedriver(use proper path for your system and version):

安装 chromedriver（为您的系统和版本使用正确的路径）：

wget http://chromedriver.storage.googleapis.com/2.7/chromedriver_linux64.zip
unzip chromedriver_linux64.zip
cp chromedriver /usr/local/bin
chmod +x /usr/local/bin/chromedriver 

After that I would recommend you to use watir-webdriver in headless mode

之后，我建议您在无头模式下使用 watir-webdriver

require 'watir-webdriver'
require 'headless'
headless = Headless.new
headless.start

browser = Watir::Browser.new :chrome
browser.goto 'http://google.com'

...

browser.close
headless.destroy

Good luck!

祝你好运！

回答by stuartpalmer

Running on Ubuntu 12.10, I also had the error message:

在 Ubuntu 12.10 上运行，我也有错误消息：

unable to connect to chromedriver http://127.0.0.1:9515

Wasn't working even after I downloaded it and installed it correctly. I even tried using the chromedriver-helper gem. So I ran chromedriver manually (/usr/bin/chromedriver) and found out 2 things:

即使在我下载并正确安装后也无法正常工作。我什至尝试使用 chromedriver-helper gem。所以我手动运行了 chromedriver (/usr/bin/chromedriver) 并发现了两件事：

1) I had a missing package dependency on libnss3 which was fixed using sudo apt-get install libnss3

1) 我缺少对 libnss3 的包依赖，它是使用修复的 sudo apt-get install libnss3

2) Version 2.9 of chromedriver (latest as of Feb 2014) requires chrome > version 31, and I had v25, which was fixed using sudo apt-get --only-upgrade install google-chrome-stable

2) chromedriver 2.9 版（2014 年 2 月最新）需要 chrome > 31 版，我有 v25，已使用修复 sudo apt-get --only-upgrade install google-chrome-stable

回答by Bill Sloane

mac osx 10.9.4, jruby 1.7.6, selenium-webdriver 2.42.0, brew install chromedriver -> installed 2.10

mac osx 10.9.4, jruby 1.7.6, selenium-webdriver 2.42.0, brew install chromedriver -> 安装 2.10

got unable to connect to chromedriver http://127.0.0.1:9515
(Selenium::WebDriver::Error::WebDriverError)

found this-> https://code.google.com/p/selenium/issues/detail?id=6574#c3

找到这个-> https://code.google.com/p/selenium/issues/detail?id=6574#c3

We have patched webdriver/chrome/service.rb to contain

我们已修补 webdriver/chrome/service.rb 以包含

@process.io.stdout = Tempfile.new("chromdriver-output")
before @process.start

which SOLVED the issue - crikey!

这解决了这个问题 - crikey！

回答by Gaurav Shah

mac osx 10.10 with jruby 1.7.12

mac osx 10.10 与 jruby 1.7.12

unable to connect to chromedriver http://127.0.0.1:9515

found this-> https://code.google.com/p/selenium/issues/detail?id=6574#c3

找到这个-> https://code.google.com/p/selenium/issues/detail?id=6574#c3

module Selenium
  module WebDriver
    module Chrome
      class Service
        alias_method :old_start, :start
        def start
          @process.io.stdout = Tempfile.new("chromdriver-output")
          old_start
        end
      end
    end
  end
end

回答by Volte

On OS X? Using Brew? Missed the instructions?

在 OS X 上？使用酿造？错过了说明？

$>> brew info chromedriver

chromedriver: stable 2.20
...
==> Caveats
To have launchd start chromedriver at login:
  ln -sfv /usr/local/opt/chromedriver/*.plist ~/Library/LaunchAgents
Then to load chromedriver now:
  launchctl load ~/Library/LaunchAgents/homebrew.mxcl.chromedriver.plist

Follow them :) worked for me. Also helps to open chrome, it might need updating.

跟随他们:) 对我来说有效。也有助于打开 chrome，它可能需要更新。

回答by Alexey Strizhak

i had some issue when configurate circle ci

我在配置 circle ci 时遇到了一些问题

• add to Gemfile interface for Xvfb

• 添加到 Xvfb 的 Gemfile 接口

gem 'headless', '~> 2.3.1'

gem 'headless', '~> 2.3.1'

• add to spec/rails_spec.rb

• 添加到规范/rails_spec.rb

if ENV['HEADLESS'] == 'on' require 'headless' headless = Headless.new headless.start end

if ENV['HEADLESS'] == 'on' require 'headless' headless = Headless.new headless.start end

so run your rspec by HEADLESS=on bundle exec rspec

所以运行你的rspec HEADLESS=on bundle exec rspec

Example of the working configuration where this problem is solved:

解决此问题的工作配置示例：

circle.yml

圆.yml

• reinstall Chrome
• install ChromeDriver
• install Selenium

• 重新安装 Chrome
• 安装 ChromeDriver
• 安装硒

Here's an excellent manual how to do it: https://gist.github.com/ziadoz/3e8ab7e944d02fe872c3454d17af31a5

这是一个很好的操作手册：https: //gist.github.com/ziadoz/3e8ab7e944d02fe872c3454d17af31a5

回答by serhiy

ubuntu-14-04-x64

ubuntu-14-04-x64

unable to connect to chromedriver 127.0.0.1:9515

无法连接到 chromedriver 127.0.0.1:9515

$ chromedriver -v
ChromeDriver 2.33.506092

$ which chromedriver
/usr/local/bin/chromedriver

---

---

 wget -N http://chromedriver.storage.googleapis.com/2.33/chromedriver_linux64.zip

    unzip chromedriver_linux64.zip

    chmod +x chromedriver

    sudo mv -f chromedriver /usr/local/share/chromedriver

    sudo ln -s /usr/local/share/chromedriver /usr/local/bin/chromedriver

    sudo ln -s /usr/local/share/chromedriver /usr/bin/chromedriver
___
    Capybara.register_driver(:headless_chrome) do |app|
      capabilities = Selenium::WebDriver::Remote::Capabilities.chrome(
       chromeOptions: { args: %w[headless disable-gpu --screen-size=1024x640] }
      )

      Capybara::Selenium::Driver.new(
       app,
       browser: :chrome,
       desired_capabilities: capabilities
      )
end

Capybara.javascript_driver = :headless_chrome
Capybara.current_driver = :headless_chrome

回答by vishal Singh

This worked for me:

这对我有用：

• Update chrome ? chromedriver-update 2.42
• Check Version ? chromedriver -v
• Search Chromedriver ? which chromedriver
• Remove chromedriver ? rm which chromedriver
• Remove Chromedriver and install new one ? 1- rm chromedriver and Download chromedriver ? 2- unzip chromedriver_mac64\ (2).zip ? 3- echo $APTH (Check your path for executable bin)
  ? 4- mv chromedriver /usr/local/bin (Place to the bin)

• 更新铬？chromedriver 更新 2.42
• 检查版本？chromedriver -v
• 搜索 Chrome 驱动程序？哪个 chromedriver
• 删除 chromedriver ？R Mwhich chromedriver
• 删除 Chromedriver 并安装新的？1-rm chromedriver 和下载 chromedriver ? 2- 解压 chromedriver_mac64\ (2).zip ? 3- echo $APTH（检查可执行文件的路径）
  ？4- mv chromedriver /usr/local/bin（放置到 bin）

回答by Prashanth Sams

If the above solutions doesn't work, try creating another gemset and execute tests

如果上述解决方案不起作用，请尝试创建另一个 gemset 并执行测试

rvm gemset create <your_gemset_name>
rvm gemset use <your_gemset_name>
gem install bundler
bundle install

Because this issue usually happens whenever there are conflicts between two versions of selenium-webdriver

因为这个问题通常发生在两个版本的 selenium-webdriver 之间发生冲突时