Serial Monitor empty


I just bought a linkit ONE.

I am able to run the Basic Blink test program, but I can’t print anything in the Serial Monitor of the Arduino Window. Could you help me ?

Here is my code :

[code]void setup()

void loop() {
Serial.print(“Hello !”);

PS : I am under windows 8.1, and I downloaded the “LinkIt-ONE-IDE-master”

Hi, there are 2 com port, do you choose the Debug one?