Error in running Tone tutorial

Other Hardware Audio
5

this is the code:

#define NOTE_G3  196
#define NOTE_B3  247
#define NOTE_A3  220
#define NOTE_C4  262
int melody[] = {
  NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};

int noteDurations[] = {
  4, 8, 8, 4,4,4,4,4 };

void setup() {
  for (int thisNote = 0; thisNote < 8; thisNote++) {
    int noteDuration = 1000/noteDurations[thisNote];
    tone(8, melody[thisNote],noteDuration);
    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    noTone(8);
  }
}

void loop() {
}

---------------------xxxxxx---------------------
ERROR:

core.a(main.cpp.o): In function main': F:\Arduino and Processing\arduino-1.0\hardware\arduino\cores\arduino/main.cpp:11: undefined reference to setup'
F:\Arduino and Processing\arduino-1.0\hardware\arduino\cores\arduino/main.cpp:14: undefined reference to `loop'

Please tell me what am i doing wrong.
Thanks.