Fixing Error Message in Console Area

@J-M-L and @sterretje Again, I am having errors compiling this sketch exmple:

void setup ()
{
  Serial.begin(9600);
  int counter;
  for (counter = 0; counter < 14; counter++) {
    Serial.print("The counter value is ");
    Serial.println(counter);
  }
  Serial.println("This is the end of the loop");
}
void loop () {
}

It's asking for the redefinition of 'void setup()'

Any support is much appreciated.

Regards,
Adam