firstly, i have downloaded arduino 1.0.1 software
after, i download The official 2.6 release of ArduCopter software.
i click open and select .gitignore file and select tools- board arduino 2560 or mega ADK
after i click verify button and i get this error message
MAV_CMD_DO_SET_ROI' vwas not declared in this scope
ArduCopter.cpp: In member function 'void GCS_MAVLINK::handleMessage(mavlink_message_…