Did a fresh install of the IDE now I am getting this error.
Arduino: 1.6.5 (Windows 8.1), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"
Build options changed, rebuilding all
Feduino_with_webcontrol_CK2.0.ino:75:20: fatal error: Base64.h: No such file or directory
compilation terminated.
Error compiling.

Happy reefing to all.
Christopher Kindig