Failed to start the listener socket

The debugger has suddenly quit working. I get error “Failed to start the listener socket on port 9000, error: -1 (the debugger could not bind on port 9000)” Same for Perl and Python. How to fix?

Hi @DryHeat122,

That means something is using that port. You can change the port in Preferences > Debugging > Connections or try and figure out what might be using that port (maybe a paused debug session?)