与MySQL数据库的C＃连接

再次，我只是通过使用google并通过论坛进行搜索并没有真正获得进一步的进展，所以我们在这里：

我正在尝试与C＃和MySQL数据库（在phpmyadmin上运行）建立连接。

这是我到目前为止得到的代码：

using System;
using System.Data;
using MySql.Data.MySqlClient;
using MySql.Data;


namespace csharpdatabasefinal
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("C#: Connect to MySQL Database using localhost." + Environment.NewLine);
            string connectionString = "server=localhost;user=csharptest;database=csharptest;port=3306;password=123";
            MySqlConnection conn = new MySqlConnection(connectionString);

            try
            {
                conn.Open();
                Console.WriteLine("Connection is " + conn.State.ToString() + Environment.NewLine);

                conn.Close();
                Console.WriteLine("Connection is " + conn.State.ToString() + Environment.NewLine);

            }catch(MySql.Data.MySqlClient.MySqlException ex)
            {
                Console.WriteLine("Error: " + ex.Message.ToString());
            }

            Console.WriteLine("Press any key to exit..");
            Console.Read();
        }
    }
}

这是我得到的错误，我想它与参考有关，但我不确定。.我添加了参考“ MySql.Data.dll”和“ System.Security.Permissions.dll”。我添加了Systen.Security.Permission.dll，因为在先前的错误中他要求它。

这是我得到的错误：

点击我！（错误图片）

这里是完整的错误代码：

System.TypeInitializationException
  HResult=0x80131534
  Message=The type initializer for 'MySql.Data.MySqlClient.Replication.ReplicationManager' threw an exception.
  Source=MySql.Data
  StackTrace:
   at MySql.Data.MySqlClient.Replication.ReplicationManager.IsReplicationGroup(String groupName)
   at MySql.Data.MySqlClient.MySqlConnection.Open()
   at csharpdatabasefinal.Program.Main(String[] args) in C:\Users\anonym\source\repos\csharpdatabasefinal\csharpdatabasefinal\Program.cs:line 19

Inner Exception 1:
FileNotFoundException: Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.