System.TypeLoadException: Could not load type 'OpenQA.Selenium.PhantomJS.PhantomJSDriver' from assembly 'WebDriver, Version=3.14.0.0, Culture=neutral, PublicKeyToken=null'.

[empz]

I've created a fresh new solution with only one MSTest project targetting .NET Framework 4.5.2.
Added the following packages:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Coypu" version="2.14.0" targetFramework="net452" />
  <package id="MSTest.TestAdapter" version="1.3.2" targetFramework="net452" />
  <package id="MSTest.TestFramework" version="1.3.2" targetFramework="net452" />
  <package id="Selenium.Support" version="3.14.0" targetFramework="net452" />
  <package id="Selenium.WebDriver" version="3.14.0" targetFramework="net452" />
  <package id="Selenium.WebDriver.GeckoDriver.Win64" version="0.22.0" targetFramework="net452" />
</packages>

And a simple test method:

    [TestClass]
    public class UnitTest1
    {
        [TestMethod]
        public void TestMethod1()
        {
            var sessionConfiguration = new SessionConfiguration
            {
                AppHost = "jamstack.org",
                SSL = true,
                Driver = typeof(SeleniumWebDriver),
                Browser = Coypu.Drivers.Browser.Firefox
            };

            using (var browser = new BrowserSession(sessionConfiguration)) // throws exception
            {
                Assert.IsTrue(browser.HasContent("JAM"));
            }
        }
    }

I'm getting the following exception on the commented line:

System.TypeLoadException: Could not load type 'OpenQA.Selenium.PhantomJS.PhantomJSDriver' from assembly 'WebDriver, Version=3.14.0.0, Culture=neutral, PublicKeyToken=null'.

Why is it trying to load PhantomJS if I've explicitly told it to use Firefox?

[empz]

I'm getting the same with the following code:

SessionConfiguration sessionConfiguration = new SessionConfiguration
            {
                AppHost = "localhost",
                Port = this.Port,
                SSL = false,
                Timeout = TimeSpan.FromSeconds(2),
                RetryInterval = TimeSpan.FromSeconds(0.1),
                WaitBeforeClick = TimeSpan.FromMilliseconds(0.2)
            };
sessionConfiguration.Driver = typeof(SeleniumWebDriver);
sessionConfiguration.Browser = Coypu.Drivers.Browser.InternetExplorer;

var browser = new BrowserSession(sessionConfiguration); // throws the exception on this line

[patcyg]

Seems like it is the issue with Selenium.WebDriver or Selenium.Support with version "3.14.0"
I downgraded both the packages to version "3.13.1" and it worked.

[obstar]

@eparizzi coypu v2.14 doesn't support selenium webdriver v3.14.0 - they remove it PhantomJS in that version.
Also coypu v2.14 is compiled against selenium webdriver 3.3.0 so thats why you get these weird behaviour (coypu selenium v3.3.0 vs project selenium v3.14.0).

There will be soon a new release of coypu supporting fully selenium webdriver v3.14

[obstar]

#191 fix will be available with next release

[obstar]

Coypu 3.0.0-rc has been released https://github.com/featurist/coypu/releases/tag/3.0.0-rc