Port Occupied

In some situations, a Joystick app may crash without a successful cleanup of the ports it has occupied (preventing a fresh startup of the app). When this occurs, there are two processes that need to be killed on your machine:

  • The process running on the port your app was started on (default: 2600).
  • The process running on the port your app was started on + 1 (default: 2601).

Killing the processes on MacOS/Linux

To kill the processes on a MacOS or Linux machine (Unix-based operating systems), from your terminal, run the following to discover the port numbers:

lsof -i :2600
// The PID column contains the process ID to kill.

lsof -i :2601
// The PID column contains the process ID to kill.

With those process IDs (PIDs), run the following:

kill <PID_1> <PID_2>

Above <PID_1> would be replaced with the PID returned from the first call to lsof and <PID_2> would be replaced with the PID returned from the second call to lsof. For example:

kill 1234 5678

After the above steps are completed, your Joystick app should start up without any issues.

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