Database.SetInitializer(新的 MigrateDatabaseToLatestVersion<Context, Configuration>());错误

Question

好吧，我得到的错误实际上是编译器错误

CS0311: there is no implicit reference conversion from...

我从包管理器启用了迁移

 public class Configuration : DbMigrationsConfiguration<PMDBContext>
 {
     public Configuration()
     {
         AutomaticMigrationsEnabled = true;
         AutomaticMigrationDataLossAllowed = true;
         ContextKey = "Context.DB.Context";
     }

     protected override void Seed(PMWeb.Models.PMDBContext context)
     {
         //  This method will be called after migrating to the latest version.
         //  You can use the DbSet<T>.AddOrUpdate() helper extension method 
         //  to avoid creating duplicate seed data. E.g.
         //
         //    context.People.AddOrUpdate(
         //      p => p.FullName,
         //      new Person { FullName = "Andrew Peters" },
         //      new Person { FullName = "Brice Lambson" },
         //      new Person { FullName = "Rowan Miller" }
         //    );
         //
     }
 }

并且这条语句：

Database.SetInitializer(new MigrateDatabaseToLatestVersion<DbContext, Configuration>());

生成以下错误：

Error 4 The type 'PMWeb.Migrations.Configuration' cannot be used as type parameter 'TMigrationsConfiguration' in the generic type or method 'System.Data.Entity.MigrateDatabaseToLatestVersion'. There is no implicit reference conversion from 'PMWeb.Migrations.Configuration' to 'System.Data.Entity.Migrations.DbMigrationsConfiguration'. f:\dropbox\partymag\pmweb\models\pmdbcontext.cs 52 83 PMWeb

顺便说一句，这之前工作正常，我不知道发生了什么变化。

Answer 1

Database.SetInitializer(new MigrateDatabaseToLatestVersion<PMDBContext, Configuration>());

我应该提供我的上下文而不是基本上下文 class。傻我。 :)

Database.SetInitializer(新的 MigrateDatabaseToLatestVersion<Context, Configuration>());错误

Database.SetInitializer(new MigrateDatabaseToLatestVersion<Context, Configuration>()); Error

c#

migration

entity-framework