Eclipse Android Emulator-5554 is always displayed

Question

I started to write an android app in Eclipse IDE.
But when I run the app (ctrl+f11), the android device chooser is showing emulator-5554 in state online, even if I did not start any emulator yet.

My question is: where does this emulator come from? and for what reason?

My android device chooser when my emulator started:

Has anyone run into this issue and explains it to me? thanks.

Answer 1

Thanks to Rohan Kandwal. It is true. While i'm running eclipse, my blue stack is running too and used port 5554. So, this question now closed.

Answer 2

If you using Bluestack, QUIT (not close) your bluestack program.