How to reslove theMixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.

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C#

C#4.0

SQL-Server-2012

Hi, i created a setup file for database project, and i am debugging the installer code it is thrown an error like "Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.", How can reslove this, please help me and advancely thanks..

Here is my code.

private void ExecuteSql(string serverName, string dbName, string Sql)
        {
            string connStr = "Data Source=" + serverName + ";Initial Catalog=" + dbName + ";Integrated Security=True";
            using (SqlConnection conn = new SqlConnection(connStr))
            {
                try
                {
                    Server server = new Server(new ServerConnection(conn));
                    server.ConnectionContext.ExecuteNonQuery(Sql); // i got an error here..
                }
                catch (Exception ex)
                {
                    Log(ex.ToString());
                }
            }
        }