HibernateException: Could not create the driver from NHibernate.Driver.MySqlDataDriver

Question

I want to create a connection with MySQL server using FluentNHibernate in ASP.NET Core, but I get an exception.

My Fluent configuration:

var config = Fluently.Configure()
                     .Database(MySQLConfiguration
                         .Standard
                         .ConnectionString(cs => cs
                             .Server(dbServer)
                             .Database(dbName)
                             .Username(dbUsername)
                             .Password(dbPassword)))
                     .Mappings(x =>x.FluentMappings.AddFromAssembly(Assembly.GetExecutingAssembly()))
                     .BuildSessionFactory();

Exception:

FluentNHibernate.Cfg.FluentConfigurationException: "An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail."

InnerExceptions:

HibernateException: Could not create the driver from NHibernate.Driver.MySqlDataDriver, NHibernate, Version=5.0.0.0, Culture=neutral, PublicKeyToken=aa95f207798dfdb4.

TargetInvocationException: Exception has been thrown by the target of an invocation.

TypeLoadException: Could not load type 'System.Data.Common.DbProviderFactories' from assembly 'System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.

Project config:

<Project Sdk="Microsoft.NET.Sdk.Web">
  <PropertyGroup>
    <TargetFramework>netcoreapp2.0</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="FluentNHibernate" Version="2.0.3" />
    <PackageReference Include="Iesi.Collections" Version="4.0.2" />
    <PackageReference Include="log4net" Version="2.0.8" />
    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0" />
    <PackageReference Include="MySql.Data" Version="6.10.4" />
    <PackageReference Include="MySql.Data.Entity" Version="6.10.4" />
    <PackageReference Include="MySql.Web" Version="6.10.4" />
    <PackageReference Include="NHibernate" Version="5.0.3" />
    <PackageReference Include="System.Configuration.ConfigurationManager" Version="4.4.0" />
  </ItemGroup>

  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.0" />
  </ItemGroup>
</Project>

Link to deps.json: http://pastebin.com/pn67pa6y

What should I do?

aaron aaron · Accepted Answer · 2017-12-04T11:07:17

FluentNHibernate does not support .NET Core (issue), because NHibernate has not (PR).

NHibernate PR is scheduled for v5.1, due by December 15, 2017 at the time of this writing.

mstancombe has a fork for .NET Core, but you have to build it yourself.

HibernateException: Could not create the driver from NHibernate.Driver.MySqlDataDriver

1 Answers