'class RGBClass' has no member named 'mirrorTo'

Firmware
1

I get an error when trying to use RGB.mirrorTo() that says

‘class RGBClass’ has no member named ‘mirrorTo’

I moved the particle electron from a proto board to a project box and decided that I want to see the breathing led so I want to mirror the D7 led as described in the particle docs. Can you tell me why Im getting the error?

This is the .ino file:

//#include "application.h"

int led = D7;
int sw = D0;
int state = LOW;
int laststate = LOW;
int count = 0;
int pinr = B1;
int ping = B2;
int pinb = B3;



void setup() {
pinMode(D0, INPUT_PULLDOWN);
pinMode(D7,OUTPUT);
pinMode(B1,OUTPUT);
pinMode(B2,OUTPUT);
pinMode(B3,OUTPUT);
Serial.begin(9600);
}

STARTUP(RGB.mirrorTo(pinr,ping,pinb));

void loop() {
    
if (digitalRead(D0) == HIGH) {
    digitalWrite(D7,HIGH);
    
  
   Particle.publish("Switch","CLOSED");
   Serial.println("D0 = HIGH");
   Serial.println(count);
   Serial.println(state);
   Serial.println(laststate);
     count++;
   
    delay(1000);
        while (digitalRead(D0) == HIGH);
        
    }
digitalWrite(D7,LOW);
Serial.println("LOW");

}
2

Does your Electron have system firmware 0.6.1 or later on it? mirrorTo is only supported on those versions. You can tell by clicking on the Devices icon then the > to the right of your Electron.