Difference with .NET Core packages for Debug and Publish run

1
votes

I migrate my project to .NET Core and some things work unexpectedly: For example - i adding package "Npgsql": "3.1.0-alpha6" and write simple 

public class Program
{
    public static void Main(string[] args)
    {
        using (var pgConnection = new NpgsqlConnection("Server=localhost;Port=5432;Database=*;User Id=*;Password=*;"))
        {
            pgConnection.Open();

            string sql = @"SELECT COUNT(*) FROM blog.posts";

            var cmd = new NpgsqlCommand(sql, pgConnection);

            var res = cmd.ExecuteScalar();

            Console.WriteLine(res);
        }

        Console.Read();
    }
}

It run OK with Debug run in Visual Studio with dnx-rc1-final. But when I publish it - it can't run, because

System.IO.FileNotFoundException: Could not load file or assembly 'System.Net.Security, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

This package used by Npgsql and when I try to generate outputs for assembly and try to compile into nuget packages - it's not working.

Why Debug run in Visual Studio find references on System.Net.Security, Version=4.0.0.0 and why published code can't do it ?

2
c#npgsqlasp.net-core

2 Answers

1
votes

Need add previous version of packages:

"System.Net.Security": "4.0.0-beta-23225",
"System.Net.NetworkInformation": "4.1.0-beta-23225"
-1
votes

You have to copy the System.Net.Security dll into the Publish directory. You can copy it from the Debug directory.

Then it should work.

Both directories ar under ...\YourProject\bin\ folder