.NET Core 2.0 の TransactionScope + SqlClient でハマってる。。

まだ対応してない?

using System;
using System.Data.SqlClient;
using System.Transactions;

namespace ConsoleApp3
{
    class Program
    {
        static void Main(string[] args)
        {
            var connstr = @"~";
            using (var tran = new TransactionScope())
            using (var conn = new SqlConnection(connstr))
            {
                conn.Open(); // 例外発生!
            }
        }
    }
}
System.NotSupportedException: 'Enlisting in Ambient transactions is not supported.'