关于EF Codefirst使用非sqlce版本

遇到报错如下：

Model compatibility cannot be checked because the database does not contain model metadata. Ensure that IncludeMetadataConvention has been added to the DbModelBuilder conventions.

建议：

1.删除原有数据库

2.在Application_Start里面应该为以下代码

if (!Database.Exists("connString"))
            {
                Database.SetInitializer<SchoolContext>(new SchoolInitializer());
            }