expected primary-expression before ')' token

Projects Programming
3 
void loop() {
  // put your main code here, to run repeatedly:
if(digitalRead (BOTTON)==HIGH)
{

digitalWrite (LED1,HIGH);
digitalWrite (LED2,HIGH);
digitalWrite (LED3,LOW);
digitalWrite (LED4,LOW);
}

else 
{
digitalWrite(LED1,LOW);
digitalWrite(LED2,LOW);
digitalWrite(LED3,HIGH);
digitalWrite(LED4,HIGH);
}


}

Just a guess.