Killing processes in c# Cannot process request because the process has exited [duplicate]

Question

This question already has an answer here:

• How to kill a process without getting a “process has exited” exception? 2 answers

I am writing a program in c# that creates a process of google chrome in incognito mode. Everything goes good. I want to start the process and after 2 seconds to kill it(and close the chrome window).

 String a = textBox1.Text + " --incognito";//Get the link that the user types
                process.StartInfo.FileName = @"C:\Program Files (x86)\Google\Chrome\Application\chrome";
                process.StartInfo.Arguments =a;
                process.Start();
                System.Threading.Thread.Sleep(2000);


                process.Kill();

It gives me an error that: Cannot process request because the process has exited.

and the break point is in the process.Kill(); line.

Answer 1

Looks like that chrome process is a launcher that opens another chrome process that contains the chrome browser and the launcher process is then closed. So you are closing a process that had already closed by itself.

Answer 2

This check helps you prevent killing the process before its terminated.

if( !process.WaitForExit(2000) ) {
   if (!process.HasExited) process.Kill();
}