Upgrading to dotnet 5.0 I get OpenQA.Selenium.InvalidSelectorException : Locator Strategy 'css selector' is not supported for this session

Support
1

using css selector
value

#com.rd.appname:id/FilterIconbutton

Response:Locator Strategy ‘css selector’ is not supported for this session

however the above is not what It should be looking for
public static By FilterIcon()
{

        return (MobileBy.Id("com.rd.appname:id/FilterIconbutton"));
    }

It points me here but not much help: ; For documentation on this error, please visit: https://www.selenium.dev/documentation/webdriver/troubleshooting/errors#invalid-selector-exception

2

I can run XPath but nousing id’s