之后我发生了添加迁移和更新数据库问题

Question

I have to add a new model to my project here is model

 public class Marking
    {
        [Key]
        public int IdMakring{get;set;}
        public int IdMema { get; set; }
        [ForeignKey("Author")]
        public string Authorr {get;set;}

    }

in model memyContext I added

public DbSet<Marking> Marking { get; set; }

I did add-migration and update-database

add-migration initialll -Context  MemeGenerator.Data.ApplicationDbContext
add-migration initialll -Context  memyContext
update-database -Context  MemeGenerator.Data.ApplicationDbContext

when I made this, error show:

I tried ones more update-database but it didn't help. Somebody see how can I fix this?

Answer 1

try to execute specifying migration name

example :

dotnet ef database update 20190524150901_initialll