I'm new to Unity and C#, hopefully my question is clear enough.
It's a Unity test project to show the issue only.
On Mac: I created a new class and opened it with Visual Studio, added the CsvHelper package using: Tools => Manage NuGet Packages => Add Package.
The package was successfully added to packages as shown here Solution
Once that was done, I was able to add the code line: using CsvHelper; with Visual Studio intellisense recognizing it.
using System.Collections;using System.Collections.Generic;using UnityEngine;using CsvHelper;public class Level {}Moving back to Unity, it showed me the error: error CS0246: The type or namespace name 'CsvHelper' could not be found (are you missing a using directive or an assembly reference?)
Switching back to Visual Studio, it started to show an error.
On Windows: I have done the same, had the same error, except I also tried adding reference through: Project => Add Reference. Once that is done, the error disappears from Visual studio, still exists in Unity.
closing Visual Studio will recreate the error there, and the reference that I added disappears from the Solution explorer under References.
I have no clue of what I'm missing, tried almost every suggestion on here that I was able to understand. excuse my lack of understanding of the terminology and the proper practices.