WProgram.h: No such file or directory

1.

change "WProgram.h" to "Arduino.h"


2.

#if ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif

References :
WProgram.h: No such file or directory
ARDUINO 1.0 - error: WConstants.h: No such file or directory