object error ????

[ballboy11]

I am trying to get the range of the overnight session this is what I have and I still get an object error.

If I turn on the for statement I get the error
Error on calling 'OnBarUpdate' method on bar 0: 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.



//GIVEN: nMar****pen, nMarketClose
//TASK: gets the overnight range of the market
//RETURN: high and low of the overnight range
public void getFibanacciRangeTimes()
{
Print(Bars.Count);
// if(Bars.Count > 100)
// {
int nDayStart = Bars.GetBar(dMar****pen.AddMinutes(-30));
int nDayEndIndex1 = Bars.GetBar(dMarketClose.AddDays(-1));
Print("Day start index " + nDayStart);
Print("Day end index " + nDayEndIndex1);
Print(Bars.Count + "Bars coutn");
if(Bars.Count > nDayStart)
{
for(int nTempCount = nDayEndIndex1; nTempCount < nDayStart; nTempCount = nTempCount + 1)
{
if (dFibHigh < High[nTempCount])
dFibHigh = High[nTempCount];

if (dFibLow > Low[nTempCount])
dFibLow = Low[nTempCount];

}
}

Print("Fib High is " + dFibHigh);
Print("Fib Low is " + dFibLow);

}

[NinjaTrader_AlanP]

Hello ballboy11,

I would suggest adding print statements to check whether your conditions are becoming true, the value of your variables, for example Bars.Count. I’ve provided a link to a youtube video which covers an example of using prints to understand behavior:

https://www.youtube.com/watch?v=K8v_2ONBbqI&feature=youtu.be&t=48m45s

I’ve provided a link covering debugging which you may find helpful.
Debugging: http://ninjatrader.com/support/forum...ead.php?t=3418

Please let us know if you need further assistance.

[ballboy11]

I did use print statements but this is where I am at.

[NinjaTrader_AlanP]

Hello ballboy11,

Without the full code we're unable to test on our end.

If you'd like to upload the full code I can take a look and see if anything jumps out. Or if you'd prefer to email a copy, send to platformsupport[at]ninjatrader[dot]com with Attn: Alan P in the Subject line. Also within the email please include a link to this thread, and the files.

I look forward to your reply.