Getting function not found errors when uploading code

And here the delayed code. In mycrocontroller world things are bot a dynamic as in a client (browser) or server (node.s) of the Web world. Dedicatedness trumps flexibility and dynamics. Things get setup and there they are... Due to the memory constraints, the 'spaghetti' is limited... ;-) I still though apply good practices (best ... is just an excuse and justification of not having stepped between the boxes...

SPI1.setup({ sck:B3, mosi:B5 });
var VPIN = A5;
// divider resistor 1 in ohms
var divr1 = 10000;
var divr2 = 1000;
var numReads = 5;
var g;

var updateVolts = function updateVolts() {
  var aread = 0;
  for (var i = 0; i < numReads; i++) {
    aread += analogRead(VPIN);
  }
  aread /= numReads;
  var pinvolts = 3.3 * aread;
  var powervolts = (pinvolts / divr2) * (divr1 + divr2);
  g.clear();
  g.setContrast(0.45);
  g.setFontVector(12);
  g.drawString("ADC: " + aread,0,0);
  g.drawString("Volts: "+ powervolts,0,16);
  g.flip();
}

// backlight stays 2 more seconds on after releasing button
var backlight = B1;
var backlightTimeout;
pinMode(backlight,"output");
var backlightOn = function(e) {
  if (backlightTimeout) { clearTimeout(backlightTimeout); }
  backlight.set();
  backlightTimeout = setTimeout(function(){
    backlightTimeout = undefined;
    if (digitalRead(BTN)) {
      backlightOn();
    } else {
      backlight.reset();
    }
  },2000);
};
setWatch(backlightOn, BTN, { repeat: true, debouce:50 });

function onInit() {
  g = require("PCD8544").connect(SPI1,B6,B7,B1­0, function() {
    setInterval(updateVolts, 500);
  });
}

A more object-oriented aproach could have bin teaken... with two inline defined singletons - voltmeter and backlight, and make some start (and stop) methods... but that's overshooting again... ;(