I am building an app and it hangs on some thread . how can i kill that app ?
tried ctrl+c but it didn't work (the icon stays in the notification area)
Try to kill it via the process list:
Or - if you want to be more nerdy - kill it via the console, using
If you know the name of your process,
The first process listed is the one I want (in this example), and the first number listed is the PID. You can also see that the command I just ran is listed in there, too.
Now that I have my PID (1779), I can stop the process with this command:
I suggest that you enter
That will suspend the process and tell you its job number.
if its job number is 1. After you press enter the first time it will mention that  is stopped. The next time you press enter it will tell you it is killed or terminated.