Cannot Start The Driver Service On Http Localhost Selenium Firefox C !!top!! -

geckodriver --version

var service = FirefoxDriverService.CreateDefaultService(@"C:\Path\To\GeckoDriver\"); service.FirefoxBinaryPath = @"C:\Program Files\Mozilla Firefox\firefox.exe"; var driver = new FirefoxDriver(service); Use code with caution. Copied to clipboard (Refer to Stack Overflow for implementation details) geckodriver --version var service = FirefoxDriverService

The exception OpenQA.Selenium.WebDriverException: 'Cannot start the driver service on http://localhost:[port]/' is a frustrating roadblock for C# automation engineers. It happens right at initialization when . Because the local HTTP server wrapper for the driver cannot boot up, Selenium halts before your code even reaches the browser. var driver = new FirefoxDriver(service)