Good day everyone,

When I review my report after a backtest the following error appears repeatedly:

java.lang.NumberFormatException: For input string: "?" @ MAFractalBreakout.MAFractalBreakout.roundFiveDecimals(MAFractalBreakout.java:442)

Any idea what it means? The function it refers to:

    //+------------------------------------------------------------------+
    //| Round Number Function                                             |
    //+------------------------------------------------------------------+
    double roundFiveDecimals(double d)
    {
       DecimalFormat twoDForm = new DecimalFormat("#.#####");
       return Double.valueOf(twoDForm.format(d));
    }

It means that string "?" was passed to Double.valueOf, which it obviously didn't recognize as a numeric value and therefore the conversion failed.