“Value never assgined to” error

Getting “Value never assgined to” on  my variables vSignalCandleClose and vSignalCandleStop. What am I doing wrong?

#—–MyIndicator–

def vSignalCandleClose;
def vSignalCandleStop;

def vEMA = MovingAverage(AverageType.EXPONENTIAL, close, 20);
def closeAboveEMA = close[1] < vEMA[1] and close > vEMA;
def closeBelowEMA = close[1] > vEMA[1] and close < vEMA;
#
if (closeAboveEMA ) {
    vSignalCandleStop = low – 1;
    vSignalCandleClose = close;
} else {
    #
}
if   (closeBelowEMA) {
    vSignalCandleStop = high + 1;
    vSignalCandleClose = close;
} else {
#
}
#
Alert(closeAboveEMA, “NQ – Close Crossed Above EMA – BUY”, Alert.BAR, Sound.Chimes);
Alert(closeBelowEMA, “NQ – Close Crossed Below EMA – SELL”, Alert.BAR, Sound.Ding);
AddLabel (yes, “Close of Signal Candle” +  (vSignalCandleClose)  );
AddLabel (yes, “SuggestedStop” +  (vSignalCandleStop)  );