Selenium RemoteWebDriver c# - System.InvalidOperationException

Question

I have a sample UI test project using v3.4.0 of Selenium.WebDriver.

Everything works fine when I run the tests against a local driver but I want to get things workin

Answer 1

Downgrading to 3.3.0 as it was suggested by Stephen may cause known issue. Try downgrading to v3.3.1 instead.

You can get the v3.3.1 from here: http://selenium-release.storage.googleapis.com/index.html?path=3.3/

Answer 2

V3.5.1 Fixes this issue.

Upgrade your Selenium NuGET package using NuGET manager & your selenium-standalone jar.

Answer 3

Downgrade to 3.3.0 until this issue gets resolved and a new release of Selenium Standalone Server is available (Recommended solution)

Or

1. Download the Solution
2. Comment this line
3. Build dotnet language bindings
   • Open command window in root directory
   • Run go //dotnet:release
   • And reference the binaries built in {root}/build/dotnet/dist

Note: This workaround does NOT fix anything! It ignores the piece of selenium grid code that causes failure.

Another note: Be aware that upgrading to Selenium 3.4 may require upgrading webdrivers as well