EF Core-无法加载程序集＆＃39; DataAccess＆＃39;。确保它由启动项目＆DataAccess＆＃39;引用。

Question

我遇到了EF核心问题。

当我想在.Net核心上使用add-migration时，我收到此错误

"Could not load assembly 'DataAccess'. Ensure it is referenced by the startup project 'DataAccess'。

我的项目已经在.netCore上的class.library和控制台应用上进行了测试。

public class ApplicationDbContext : IdentityDbContext<User>

{

    public ApplicationDbContext(DbContextOptions options)
    : base(options)
    {
    }

    public virtual DbSet<User> Users { get; set; }
    public virtual DbSet<Role> Roles { get; set; }
    public virtual DbSet<Group> Groups { get; set; }
    public virtual DbSet<GroupRole> GroupRoles { get; set; }
    public virtual DbSet<Log> Logs { get; set; }
    public virtual DbSet<LogDetail> LogDetails { get; set; }



    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    => optionsBuilder.UseSqlServer(
        @"Data Source=.;Initial Catalog=DotNetCore;Persist Security Info=True;User ID=sa;Password=25423456;");

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {

        modelBuilder.Entity<User>()
                     .HasOne(d => d.Group)
                     .WithMany(t => t.Users)
                     .HasForeignKey(d => d.GroupId)
                     .OnDelete(DeleteBehavior.Cascade);

    }


} 

Answer 1

我们应该以x64模式迁移。