mvc5+ef6报错的问题

[u013618777]

本人刚接触MVC5，今天碰到问题，启动项目测试，结果数据库没有生成，表更加没有，已经添加了DBContext和Initializer，
Web.config也就行了更改。到页面后报如下错误：

[InvalidOperationException: 未能为应用程序配置中指定的 DbContext 类型“MaterialManageSystem.DAL.MaterialSystemContext”设置类型“MaterialManageSystem.DAL.MyDbInitializer”的数据库初始值设定项。有关详细信息，请参阅内部异常。]

Seed方法我也有赋值了，，，数据库用的是mysql!

[u013618777]

  <entityFramework>
    <contexts>
      <context type="MaterialManageSystem.DAL.MaterialSystemContext" >
      <!--disableDatabaseInitialization="true"-->
        <databaseInitializer type="MaterialManageSystem.DAL.MyDbInitializer" />
      </context>
    </contexts>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
    <providers>
      <provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.9.8.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"/>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>
<system.data>
    <DbProviderFactories>
      <remove invariant="MySql.Data.MySqlClient" />
      <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.9.8.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
    </DbProviderFactories>
  <connectionStrings>
    <add name="MaterialSystemContext" providerName="MySql.Data.MySqlClient" connectionString="server=localhost;UserId=root;Password=mysqlroot;database=test;CharSet=utf8;Persist Security Info=True" />
    <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\aspnet-MaterialManageSystem-20160322123545.mdf;Initial Catalog=aspnet-MaterialManageSystem-20160322123545;Integrated Security=True" providerName="System.Data.SqlClient" />
  </connectionStrings>

这是web.config的配置