将 asp.net 发布到 Azure 时出现问题。 数据库错误

Question

I have a problem with the application when sharing it on azure. It works fine locally, but when publishing it, the message appears:

There is already an object named 'Categories' in the database.

Here is my Context.cs

namespace Sklep_komputerowy.Models
{
    public class ProductContext : DbContext
    {
        public ProductContext() : base("Sklep_komputerowy")
        {
        }
        public DbSet<Category> Categories { get; set; }
        public DbSet<Product> Products { get; set; }
        public DbSet<CartItem> ShoppingCartItems { get; set; }
        public DbSet<Order> Orders { get; set; }
        public DbSet<OrderDetail> OrderDetails { get; set; }
    }
}

and category.cs

namespace Sklep_komputerowy.Models
{
   public class Category
   {
       [ScaffoldColumn(false)]
       public int CategoryID { get; set; }

       [Required, StringLength(100), Display(Name = "Nazwa")]
       public string CategoryName { get; set; }

       [Display(Name = "Opis")]
       public string Description { get; set; }

       public virtual ICollection<Product> Products { get; set; }
   }
} 

The application was created on the basis of the wingtip toys tutorial:

https://docs.microsoft.com/pl-pl/aspnet/web-forms/overview/getting-started/getting-started-with-aspnet-45-web-forms/

I have the code-first option selected in the publication profile

I migrated database using commands

Enable-Migrations
Add-migration firstMigration
Update-Database

Answer 1

you have two option 1.delete Categories table on azure sever or 2. find the migration that creating categories table and remove it from migration file then deploy again