Arduino IDE iduino yun detection

[charlythegood]

Like I said about the Iduino yun shield is installed on Leonardo Shield, so the configuration would it be: Shield "Arduino Leonardo" and Port "Arduino Yun" or Shield "Arduino Yun" and Port "Arduino Yun".
I ask because unfortunately when loading a basic example as "ScanNetworks" (Yun shield energized with 9V DC and charging via USB cable program on Leonardo shield), the serial port says "WiFi shield not present".
¿Would I have to load the program for wifi or direct to Yun shield with an USB-USB cable?
Thanks for your help.