OnStateChange Error

[963robo]

I'm getting the following error when trying to run a backtest:
Error on calling 'OnStateChange' method: 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.

The Strategy using what the ATR was on the previous bar (BarsAgo = 1) to determine Target and Stop orders.
It also is looking at the close of 2 Bars ago and comparing to the close of the previous bar (BarsAgo = 1).

Minimum bars to trade is set to 20, which should be/ is fine, as ATR period is set below that. Tried multiple values, that doesn't seem to be the culprit.

[NinjaTrader_BrandonH]

Hello 963robo,

Thanks for your post.

This error message indicates that you are trying to access a BarsAgo value that is not valid. A more simple example using one series would be on bar 5 you check for 6 BarsAgo. There are not yet 6 bars so the CurrentBar minus 6 would be a negative number or a non-existent bar.

A CurrentBar check could be used in your indicator's logic to ensure that a certain number of bars have processed before the indicator begins calculation.

See the help guide documentation below for more information.

CurrentBar - https://ninjatrader.com/support/help...currentbar.htm
CurrentBars - https://ninjatrader.com/support/help...urrentbars.htm
Make sure you have enough bars - https://ninjatrader.com/support/help...nough_bars.htm