Why do I get "unable to bind, address already in use" fatal error?

This means that an another session of Alkaline is running. This can be due to a running Alkaline process that has not been terminated. To find out running Alkaline processes on UNIX, use ps -aux | grep asearch or ps -alef | grep asearch (read ps documentation for exact flags). To find out running Alkaline processes on Windows NT, use the task manager and look for asearch.exe.