Custom Indicator error

[ark321]

Trying to create an indicator by using one of the custom indicator. But, getting this error:

Indicator 'QMomentum': Error on calling 'OnBarUpdate' method on bar 30: .IsValidDataPoint cannot be used on a series running with MaximumBarsLookBack.TwoHundredFiftySix.

Attached is the code snippet of the indicator. Any idea what might be missing?

Appreciate any help.

[NinjaTrader_Jesse]

Hello ark321,

in this case the error is in the QMomentum indicator and not your custom indicator. Is that something you have the source code for?

Essentially the QMomentum has a line of code like the following: \

myDoubleSeries = new Series<double>(this, MaximumBarsLookBack.TwoHundredFiftySix);

and instead needs to be

myDoubleSeries = new Series<double>(this, MaximumBarsLookBack.Infinite);

[ark321]

No, dont have the source code.But the same logic works when I create a strategy using QMomentum indicator

[NinjaTrader_Jesse]

Hello ark321,

Unfortunately you would have to contact the creator of that indicator to have that code changed. However the indicator is being used while you are using it in your indicator is making its logic use IsValidDataPoint which is something the developer of that indicator has added into its code. In order to use that method with a series that series needs to be defined correctly, the error specified that the series was not made correctly for use with IsValidDataPoint.