如何在C＃中设置Selenium webdriver.gecko.driver设置

Question

开箱即用，我无法让硒网格工作。我有selenium服务器3.4.0和以下代码产生显示的错误

收到错误

An unhandled exception of type 'System.InvalidOperationException' occurred in WebDriver.dll

Additional information: The path to the driver executable must be set by the 
webdriver.gecko.driver system property; for more information, see 
https://github.com/mozilla/geckodriver. The latest version can be downloaded 
from https://github.com/mozilla/geckodriver/releases

简单代码

using System;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.Remote;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            var url = new Uri("http://10.6.122.49:5555/wd/hub");

            var options = new FirefoxOptions();
            options.SetPreference("webdriver.gecko.driver", @"D:\geckodriver.exe");

            var driver = new RemoteWebDriver(url, options.ToCapabilities());

            driver.Navigate().GoToUrl("http://www.google.com");
        }
    }
}

更新

Answer 1

我在这里用清楚的例子解释，相应地做出改变

注意：确保在开始之前执行此操作。

1. 如果您使用的是GECKODRIVER v0.19.0，请使用Firefox版本55.0（及更高版本）和Selenium 3.5（及更高版本） 另外，请确保根据您的操作系统下载GeckoDriver的正确位，即Windows 32或Windows 64位。

您可以从此位置下载Geckodriver https://github.com/mozilla/geckodriver/releases

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OpenQA.Selenium;
using OpenQA.Selenium.Support;
using OpenQA.Selenium.Support.UI;
using NUnit.Framework;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.Chrome;


namespace ClassLibrary2
{
    public class Class1
    {

        FirefoxDriverService service = FirefoxDriverService.CreateDefaultService(@"D:\dev1"); // location of the geckdriver.exe file

        [Test]
        public void GeckoDriverImplementation()
        {

            IWebDriver driver = new FirefoxDriver(service);
            driver.Navigate().GoToUrl("https://google.com/");

        }
    }
}

Answer 2

在系统变量下添加名称为：webdriver.gecko.driver和value = D：\ geckodriver.exe的环境变量。你可以安全地删除

options.SetPreference("webdriver.gecko.driver", @"D:\geckodriver.exe");

希望这有帮助

Answer 3

在C＃中

 Environment.SetEnvironmentVariable("webdriver.gecko.driver", @"C:\full\path\to\geckodriver.exe");