Hello, I have been using my Arduino Uno for some time now without any issues. I don't think I have made any significant changes to my mac laptop, but now the tools->port "/dev/cu.usbmodem1411" is no longer an option when connecting to the arduino. I have the same issue on another machine running 1…

Mac 10.13.4 - can't open device "/dev/cu.usbmodem1411"

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