driver.FindElement(By.Id(\"inputUsername\")).SendKeys(\"aca\"); driver.FindElement(By.Id(\"inputPassword\")).SendKeys(\"123\"); driver.FindElement(By.TagName(\"butto
First of all, You need to install the proper package from NuGet which is Selenium.Support
Correct using statements is as:
using OpenQA.Selenium.Support.UI;