实体框架6与Mysql“System.InvalidOperationException”

Question

我是.net的新手 我正在尝试使用EF6和MySql构建控制台应用程序

我在运行时总是遇到这个错误

这是我的app.conf

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
  </configSections>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
  </startup>
  <connectionStrings>
    <add name="MyContext" providerName="MySql.Data.MySqlClient"
        connectionString="server=192.168.1.212;port=3306;database=zkatt;uid=fanta;password=040506"/>
  </connectionStrings>
  <entityFramework codeConfigurationType="MySql.Data.Entity.MySqlEFConfiguration, MySql.Data.Entity.EF6">
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
    <providers>
      <provider invariantName="MySql.Data.MySqlClient"
          type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6"/>
      <provider invariantName="System.Data.SqlClient"
          type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
    </providers>
  </entityFramework>
  <system.data>
    <DbProviderFactories>
      <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description="MySQL Database Provider" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data" />
    </DbProviderFactories>
  </system.data>
</configuration>

我的上下文类

[DbConfigurationType(typeof(MySqlEFConfiguration))]
public partial class Entities : DbContext
{
    public Entities()
        : base("name=MyContext")
    {
    }

我想念的任何事情？

*编辑 这是完整报告错误

Answer 1

删除无用的节点：

<DbProviderFactories>
  <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description="MySQL Database Provider" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data" />
</DbProviderFactories>

并指定MySqlClient提供商的版本，例如：

<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.10.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>

Answer 2

将mysql实体降级到6.9.10，现在是它的工作，浪费了我6个小时。