Indicators are not loading after Tick Replay enabled

[nandhumca]

Hi,

I am using EMA and CurrendDayOHL in my indicator. My indicator is getting loaded in normal mode. When I enable Tick Replay , it is stopped loading and showing below error message in console. Any additional code needs to be done in my indicator to handle tick replay?
Indicator 'EMA': Error on calling 'OnBarUpdate' method on bar 2864: Object reference not set to an instance of an object.
Indicator 'Current day OHL': Error on calling 'OnBarUpdate' method on bar 2864: Object reference not set to an instance of an object.

[NinjaTrader_Emily]

Hello nandhumca,

Thank you for your post.

Since you are receiving an "Object reference not set to an instance of an object" error, I suspect you will need to add a null reference check somewhere in your script. We have a page with more tips about adding null reference checks here:

https://ninjatrader.com/support/helpGuides/nt8/checking_for_null_references.htm

If you are not sure which part of your script is throwing the null reference error, it can be helpful to add print statements to debug your script:

https://ninjatrader.com/support/forum/forum/ninjatrader-7/strategy-development-aa/99209-date-conditions-not-working#post791121

Additionally, it may be worth evaluating if your indicator requires tick replay. There is more information about developing for tick replay and how the tick replay engine works on the following page:

https://ninjatrader.com/support/helpGuides/nt8/developing_for__tick_replay.htm

Please let us know if we may be of further assistance.