File .sqlite System.AccessViolationException c# WPF

After looking for in several topics I am still without answer. I just make a test with Sqlite in C#. But my program through an System.AccessViolationException and I can't figure it out.

I created the eleves.sqlite with an Mozilla Extension. And in my document folder so normaly I have all right to get it.

My Simple Code :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using MahApps.Metro.Controls;
using Finisar.SQLite;

namespace GestionEleves
{
    /// <summary>
    /// Logique d'interaction pour MainWindow.xaml
    /// </summary>
    public partial class MainWindow : MetroWindow
    {
        public MainWindow()
        {
            InitializeComponent();
            test_connexion_db();
        }

        private void reinitialiser()
        {
            // Mise à jours des élèves

        }

        private void test_connexion_db()
        {

                // We use these three SQLite objects:
                SQLiteConnection sqlite_conn;
                SQLiteCommand sqlite_cmd;
                SQLiteDataReader sqlite_datareader;

                // create a new database connection:
                sqlite_conn = new SQLiteConnection("Data Source=eleve.sqlite;Version=3;New=False;");

                // open the connection:
                sqlite_conn.Open();

                // create a new SQL command:
                sqlite_cmd = sqlite_conn.CreateCommand();


                // But how do we read something out of our table ?
                // First lets build a SQL-Query again:
                sqlite_cmd.CommandText = "SELECT * FROM eleve";

                // Now the SQLiteCommand object can give us a DataReader-Object:
                sqlite_datareader = sqlite_cmd.ExecuteReader();

                // The SQLiteDataReader allows us to run through the result lines:
                while (sqlite_datareader.Read()) // Read() returns true if there is still a result line to read
                {
                    // Print out the content of the text field:
                    lb_eleves.Items.Clear();

                    lb_eleves.Items.Add(sqlite_datareader["nom"] + " " + sqlite_datareader["prenom"]);
                }

                // We are ready, now lets cleanup and close our connection:
                sqlite_conn.Close();
        }
    }
}

The Exception is throw at line => sqlite_conn.Open();

Thanks in advance for your help ;-) Antoine