Event handler probelm

[tkaboris]

Hi my strategy gets disable with following output. What do i need to do?

Indicator 'EMA': Error on calling 'OnBarUpdate' method on bar 16218: You are accessing an index with a value that is invalid since it is out-of-range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart.
Strategy 'Algo': Error on calling 'EventHandlerBarsUpdate' method: Object reference not set to an instance of an object.


I have

else if (State == State.DataLoaded)
{
ClearOutputWindow(); //Clears Output window every time strategy is enabled
fastEMA = EMA(FastEMAPeriod);
slowEMA = EMA(SlowEMAPeriod);
baseEMA = EMA(BaseEMAPeriod);
}
region Bars in progress 2
else if (BarsInProgress == 2 && IsFirstTickOfBar)
{
if (CurrentBars[0] < 20 || CurrentBars[2] < 6 )
return;

fastHTFEMA = EMA(BarsArray[2], 8);
slowHTFEMA = EMA(BarsArray[2], 34);
baseHTFEMA = EMA(BarsArray[2], 89);
base200HTFEMA = EMA(BarsArray[2], 200);

[tkaboris]

Sometimes in my logic i use other emas but i dont define them anywhere just like this. Would this throw an error? or its totally fine
Close[1] > EMA(600)[1]

[eDanny]

EMA(600)[1]? EMA's need a dataseries of some kind here instead of a number like 600.

[tkaboris]

Can you provide an example of how i would do that?

[zeller4]

I'm assuming he means like EMA(Close,600)[1] or some other Input(s).

[eDanny]

It's perfectly fine to use a statement like Close[1] > EMA(Close, 600)[1] but is not as efficient.

[NinjaTrader_ChelseaB]

Hello tkaboris,

What is the specific line of code causing the error?

Have you called AddDataSeries() twice in State.Configure?

If you print BarsArray.Count() does this print 3 or higher?

[tkaboris]

So for my EMAs i have
private EMA fastEMA, slowEMA, baseEMA;
in dataload i define them
fastEMA = EMA(Close, 8);
slowEMA = EMA(Close, 34);
baseEMA = EMA(Close, 89);

and i reference them as
Low[1] <= slowEMA[1]

I am still getting the same error after strategy runs for a while
Indicator 'EMA': Error on calling 'OnBarUpdate' method on bar 34295: You are accessing an index with a value that is invalid since it is out-of-range.
What can it be?

Question
I declare EMAs for secondary series in the same place where i declare EMAs for my primary series. is this right?
private EMA fastEMA, slowEMA, baseEMA;
private EMA slowHTFEMA, baseHTFEMA, fastHTFEMA, base200HTFEMA;

[NinjaTrader_Jesse]

Hello tkaboris,

If you still have an error you need to simplify the problem. We can't tell why you get that error just based on the lines you extracted. As Chelsea mentioned we need to know what specific line of code is having an error to be able to help.

To proceed you would have to debug the code and find what specific line inside OnBarUpdate is having an error and post that line only. Based on that line we can see what is being used and provide further direction.

[tkaboris]

BarsArray.Count() dispalys 3.
0 - primary.
1 - for ticks graniluity
2 - HTF higher time frame

I will try to single out what line cauising an issue..