I was trying to upload a simple sketch that would read the values off a sliding pot I have on pin0 ...every time I plugged in my arduino micro my mac would ask me to set up the USB modem in the system preferences twice! I got annoyed so instead of hitting cancel I hit ok.
I uploaded the sketch finally but I still couldn't get the values to print out to the serial monitor...
Now I don't know what I did but the USB option in the serial port menu is completely gone, there used to be two. Now there are only bluetooth and motorolla phone dialup net-1 or whatever that is.
I have my arduino connected by USB and whenever I try to upload my sketch I get this debug error:
processing.app.debug.RunnerException: Serial port '/dev/tty.MotorolaPhone-DialupNet-1' already in use. Try quitting any programs that may be using it
I cannot select USB from the serial port because it is no longer an option. I have tried deleting the arduino as a modem from the network prefs and it didn't help. I don't know what went wrong but I need to get my arduino working again.