Arduino: 1.6.13 (Windows 7), Board: “Arduino Nano, ATmega328”
In file included from C:\Program Files\Arduino\examples\09.USB\Keyboard\KeyboardMessage\KeyboardMessage.ino:23:0:
C:\Program Files\Arduino\libraries\Keyboard\src/Keyboard.h:29:2: warning: #warning “Using legacy HID core (non pluggable)” [-Wcpp]
#warning “Using legacy HID core (non pluggable)”
^
C:\Program Files\Arduino\examples\09.USB\Keyboard\KeyboardMessage\KeyboardMessage.ino: In function ‘void setup()’:
KeyboardMessage:33: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.begin();
^
C:\Program Files\Arduino\examples\09.USB\Keyboard\KeyboardMessage\KeyboardMessage.ino: In function ‘void loop()’:
KeyboardMessage:46: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.print("You pressed the button ");
^
exit status 1
‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.
" i don’t understand why it is happening when compiling the inbuilt examples or any program related to keyboard.h"