gsapir 

I know, and I did that. I also used build 4.5 so it will be compatible with NT8. still the same error @ericson are you familiar with this issue? @ratfink Are you using other machine learning library ? can you advice ? thanks

Hi @gsapir,

Not sure if it helps, but I started this thread years ago on installing an older version of Accord.NET:

Setting up Accord.NET on NinjaTrader I have recently go Accord.NET (an Aforge wrapper/add-on) working on NinjaTrader. To get Accord functioning properly, you will need the ACCORD.NET (3.5 Ver) libraries as well as AForge libraries. accord - Accord.NET Framework - Google Project Hosting …

NJAMC 

Hi @gsapir, Not sure if it helps, but I started this thread years ago on installing an older version of Accord.NET: Setting up Accord.NET on NinjaTrader I have recently go Accord.NET (an Aforge wrapper/add-on) working on NinjaTrader. To get Accord functioning properly, you will need the ACCORD.NET (3.5 Ver) libraries as well as AForge libraries. accord - Accord.NET Framework - Google Project Hosting …

I dont have permission to this link.

gsapir 

I dont have permission to this link.

Sorry.