Error on bars ago

[memonic]

Dear Sir.

in log appear this error during market replay. the strategy calls on market deph.

Strategy 'dggr4': Error on calling 'OnMarketDepth' method on bar 4094: 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.

but i have included in onBarupdate method:

if (Bars.Count < 20)
return;

where is the error

thanks

[NinjaTrader_PaulH]

Hello memonic,

Thanks for your post.

The error message is advising the bar index error occurred on bar 4094 which is well beyond 20 bars. The last part of the error message, "I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart." is providing a limited example of what can cause the error.

You might review any bar indexes that are calculated. You would need to debug your script with print statements to understand where the error is occurring in your script.

Please see the help guide section here for debugging tips: https://ninjatrader.com/support/help...script_cod.htm