Entity Framework 5.0 code-first with MySQL Connector 6.6.5.0 on .Net 4.5

Question

For the life of me, I can\'t get my C# WinApp to work with Entity Framework 5.0 with a MySql database using MySql connector 6.6.5.0 (MySql.Data reference) and MySql

Answer 1

I ran into the same problem in my first day of using mysql in EF. And I found your config is incorrect, and it should be

  <entityFramework>
<defaultConnectionFactory type="MySql.Data.Entity.MySqlConnectionFactory, MySql.Data.Entity">
</defaultConnectionFactory>

And make sure you use .net framework 4.5 and mysql connector lib for .net 4.5 as well for EF 5, since the connector for .net 4 supports only EF 4.4.

Answer 2

The MySQL Connector 6.6.5 only supports Entity Framework 4.3 as mentioned here. I have personally used it which worked well so far. However, if you require Entity Framework 5 specifically, you would need to use MySQL Connector 6.6.7 Beta which now supports it as mentioned here. I haven't tried v 6.6.7 though.

Update 1: You can find the blog post of using EF 4.3 code-first with MySQL Connector 6.6 here.

Update 2: Sample .NET 4.5 console application using EF 4.3 and MySql Connector 6.6.5 here.

Answer 3

Sounds like there's some strange assembly resolution issues. Try deleting the assemblyBinding element in your config file and then run NuGet's Add-BindingRedirect command.

Answer 4

Most of my production web.config. I've taken out all the company specific stuff... Also this config was setup for MVC4/EF5/OData 5.2 with IIS compression. Pretty complicated stuff...most of it won't be required. But I figured you wanted my raw config for reference.

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
      <section name="EdgeService.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </sectionGroup>
  </configSections>

  <appSettings>
    <add key="log4net.Config.Watch" value="True" />
    <add key="log4net.Config" value="EdgeService.log4net.config" />
    <add key="PullVersionPeriod" value="30000" />
    <add key="webpages:Version" value="2.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="PreserveLoginUrl" value="true" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <httpRuntime maxRequestLength="12288" maxUrlLength="10999" maxQueryStringLength="2097151"/>
    <compilation debug="true" targetFramework="4.5">
      <assemblies>
        <add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
        <add assembly="System.Web.Helpers" />
      </assemblies>
    </compilation>
    <authentication mode="Windows" />
    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID" />
  </system.web>
  <system.data>
    <DbProviderFactories>
      <clear />
      <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description="ADO.Net driver for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.5.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
    </DbProviderFactories>
  </system.data>
  <system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="false" />
  </system.serviceModel>
  <system.webServer>
    <handlers>
      <remove name="svc-Integrated-4.0" />
      <remove name="WebDAV" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
    <modules runAllManagedModulesForAllRequests="true">
      <remove name="WebDAVModule" />
      <add name="PerRequestLifestyle" type="Castle.MicroKernel.Lifestyle.PerWebRequestLifestyleModule, Castle.Windsor" />
    </modules>
    <security>
      <requestFiltering>
        <requestLimits maxQueryString="100000" />
      </requestFiltering>
      <authentication>
        <!--C:\Windows\System32\inetsrv\config\applicationHost.config-->
        <anonymousAuthentication enabled="false" />
        <windowsAuthentication enabled="true">
          <providers>
            <clear />
            <add value="Negotiate" />
          </providers>
        </windowsAuthentication>
      </authentication>
    </security>
    <httpCompression>
      <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" staticCompressionLevel="9" dynamicCompressionLevel="4" />
      <dynamicTypes>
        <add enabled="true" mimeType="Application/*" />
        <add enabled="true" mimeType="application/atom+xml;type=feed;charset=utf-8" />
      </dynamicTypes>
    </httpCompression>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="MySql.Data" publicKeyToken="C5687FC88969C44D" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-6.6.4.0" newVersion="6.6.4.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="MySql.Data.Entity" publicKeyToken="c5687fc88969c44d" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-6.6.4.0" newVersion="6.6.4.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="MySql.Web" publicKeyToken="c5687fc88969c44d" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-6.6.4.0" newVersion="6.6.4.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.4.0.0" newVersion="5.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Data.Edm" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.0.0" newVersion="5.2.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Data.OData" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.0.0" newVersion="5.2.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Spatial" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.0.0" newVersion="5.2.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>