Arduino 1.6.6 shows Errors after installing ESP-Boards
Posted: Wed Nov 04, 2015 12:50 pm
Seems it's jet not possible to use the actual release 1.6.6 of the Arduino IDE together with Esp8266, see this link:
https://github.com/esp8266/Arduino/issues/965
https://github.com/esp8266/Arduino/issues/965