This is an error that I have just gotten when plugging in a shield that has had no problem in the past! Any assistance?
Arduino: 1.6.1 (Mac OS X), Board: "Arduino Uno"
Sketch uses 8,716 bytes (27%) of program storage space. Maximum is 32,256 bytes. Global variables use 353 bytes (17%) of dynamic memory, leaving 1,695 bytes for local variables. Maximum is 2,048 bytes. avrdude: ser_open(): can't open device "/dev/tty.usbmodem1411": Resource busy ioctl("TIOCMGET"): Inappropriate ioctl for device Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
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