On MacOS 10.11.5 with Arduino IDE 1.6.X the upload failes due to avrdude error, although a programmer has been specified in the dropdown menu
[Stino - Start uploading...]
"/Applications/Arduino.app/Contents/Java/hardware\tools\avr/bin/avrdude" "-C/Applications/Arduino.app/Contents/Java/hardware\tools\avr/etc/avrdude.conf" -v {upload.verify} -patmega328p -carduino "-P/dev/cu.usbserial-A98V3D55" -b57600 -D "-Uflash:w:/tmp/Stino_build/Blink/Blink.hex:i"
avrdude: Version 6.0.1, compiled on Apr 14 2015 at 16:30:25
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf"
User configuration file is "/Users/XXX/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
avrdude: no programmer has been specified on the command line or the config file
Specify a programmer using the -c option and try again
[Stino - Exit with error code 1.]
On MacOS 10.11.5 with Arduino IDE 1.6.X the upload failes due to avrdude error, although a programmer has been specified in the dropdown menu
Upload works fine in Arduino IDE.