Using MLAgents;

[asdf2154s]

I am trying to import MLAgents to this project.
However I got missing reference error.

The type or namespace name 'MLAgents' could not be found (are you missing a using directive or an assembly reference?)

Things that I tried are:
1. Selected Scripting Runtime Version to .NET 4.x Equivalent
2. Added ENABLE_TENSORFLOW to the Scripting Define Symbols
3. Drag the ML-Agents and Gizmos folders from UnitySDK/Assets to the Unity Editor Project window.

I also tried:
1. Selected Scripting Runtime Version to .NET 4.x Equivalent
2. Added ENABLE_TENSORFLOW to the Scripting Define Symbols
3. Imported TensorFlowSharp Plugin

Any help would be highly appreciated.