Understanding AddDataSeries

[ballboy11]

I created some logic to read from a 10 minute chart and display on a volume 1000 chart.


else if (State == State.Configure)
{

AddDataSeries(Data.BarsPeriodType.Minute, 10);

}


OnbarUpdate


if (BarsInProgress == 1)
{
//do my calcuations
}

Now this is my error

2018-04-22 21:46:17:047 Cbi.Instrument.RequestBars (to Provider): instrument='NQ 06-18' from='4/22/2018 12:00:00 AM' to='4/22/2018 12:00:00 AM' period='1 Minute'
2018-04-22 21:46:17:828 ERROR: Indicator 'MyIndicator': Error on calling 'OnBarUpdate' method on bar 7097: Object reference not set to an instance of an object.

How can this be on a 1000 volume chart AND the add data series is 10 minutes?
If I change the Dataseries to 15 minues, 30 minutes or 60 minutes it will work.

[NinjaTrader_AlanP]

Hello ballboy11,

Thank you for your note.

If you open a NQ ##-## volume chart and right click on the chart>Data Series and set bars to load to 50, OK. How far is the chart built back? For example March 1 2018.

I look forward to your reply.