A problem in IBoxDB

[Vladislav]

Hello everyone, i'm new to Unity as well as to IBoxDB, i would like to know why am i getting an error when i try to create a table in the IBoxDB.

This is the code i; trying to use:

using UnityEngine;
using System;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;

// [iBoxDB.net2.dll]
using iBoxDB.LocalServer;

public class IBoxTest : MonoBehaviour
{

public DB server = null;
public DB.AutoBox db = null;

public class Player
{
    public string playerName;
    public long playerExp;
    public List<String> playerCards;
}

public class Cart
{
    public string cardName;

    public string cardDescription;

    public Image cardFace;
}

// Use this for initialization
void Start ()
{
    if(db == null)
    {
        DB.Root(Application.persistentDataPath);

        server = new DB();

        server.GetConfig().EnsureTable<Player>("Players","Name","Experience","CardZ");

        db = server.Open();
    }

    for (int i = 0; i < 5 ;i++)
    {
        var pl= new Player{
            playerName ="Vlad_"+i,
            playerExp = i,
            playerCards = new List<string>()
        };

        db.Insert ("Players",pl);
    }

}//Start Ends
private string _context;

void DrawToString ()
{
    _context = "";
    //SQL-like Query
    _context += "Players \r\n";
    foreach (Player player in db.Select<Player>("from Players", 0)) {
        _context += player.playerName + " Experience:" + player.playerExp + "\r\n";
    }
}

}

The Error i'm getting is:

ArgumentNullException: Argument cannot be null.
Parameter name: key
System.Collections.Generic.Dictionary`2[System.Type,iBoxDB.ByteCodes.Class193].TryGetValue (System.Type key, iBoxDB.ByteCodes.Class193& value) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Collections.Generic/Dictionary.cs:588)
iBoxDB.ByteCodes.Class188.smethod_12 (System.Type type_0)
iBoxDB.ByteCodes.Class148.smethod_2[Player] (System.String[] string_3)
iBoxDB.ByteCodes.Class148.smethod_0[Player] (System.String string_3, System.String[] string_4)
iBoxDB.LocalServer.DatabaseConfig.EnsureTable[Player] (System.String tableName, System.String[] names)
iBoxDB.LocalServer.DatabaseConfig+Config.EnsureTable[Player] (System.String tableName, System.String[] names)
IBoxTest.Start () (at Assets/Scripts/IBoxTest.cs:46)

any help would be appreciated.

[iBoxDB]

public class Player
{
    public string playerName;
    public long playerExp;
}
 GetConfig().EnsureTable<Player>("Players","Name","Experience","CardZ");

"Name", "Experience", "CardZ" are not the Fields of Class Player.
Use Field-Name or Property-Name as Key

.EnsureTable<Player>("Player", "playerName");