Arduino: 1.6.4 (Mac OS X), Board: "Arduino Uno"
Sketch uses 1,030 bytes (3%) of program storage space. Maximum is 32,256 bytes. Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Maximum is 2,048 bytes. avrdude: ser_open(): can't open device "/dev/cu.Bluetooth-Modem": 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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This error showed up during my first "Blink" project. I've checked the troubleshooting page, and I can't find a thing.
What should I do?