Parameter name: source

7robert

Senior Member

Join Date: Jul 2019

Posts: 216
#1

Parameter name: source

10-23-2019, 09:41 AM

I receive this error and IDK why.

Error on calling 'OnBarUpdate' method on bar 4026: Value cannot be null. Parameter name: source

Could you help me?
Tags: None
7robert

Senior Member

Join Date: Jul 2019

Posts: 216
#2

10-23-2019, 09:44 AM

Already fixed!
Comment
NinjaTrader_ChelseaB

NinjaTrader Customer Service

Join Date: Dec 2012

Posts: 21895
#3

10-23-2019, 09:52 AM

Hello 7robert,

Glad you were able to get the item fixed.

Was this a line in the code that was corrected?

(The error sounds like a variable named source had a null value)

Chelsea B.NinjaTrader Customer Service
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NateG0310

Junior Member

Join Date: Apr 2021

Posts: 14
#4

04-28-2022, 06:32 AM

Hi 7robert, do you mind sharing how you fixed it? Everything was working for me, and then I started getting this error, and I haven't figured it out yet. Thanks!

Nathan.
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NateG0310

Junior Member

Join Date: Apr 2021

Posts: 14
#5

04-28-2022, 07:42 AM

I found my error as well. I was calling an array I had not assigned any values to.
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