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public ViewResult List(string category , int productPage = 1) => View(new ProductsListViewModel
 p.Category == category)
 .OrderBy(p => p.ProductID)
 .Skip((productPage - 1) * PageSize)
 .Take(PageSize),
 PagingInfo = new PagingInfo
 
 CurrentPage = productPage,
 ItemsPerPage = PageSize,
 TotalItems = category == null ? repository.Products.Count() : repository.Products.Where(e => e.Category == category).Count()
 ,
 CurrentCategory = category
 ); 

This is a part where my error is showing up.

I did a migrations of this two classes.

using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Design;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.EntityFrameworkCore.Infrastructure;


namespace SportsStore.Models

 public class ApplicationDbContext : DbContext
 
 public ApplicationDbContext(DbContextOptions<ApplicationDbContext>options) : base(options) 

 public DbSet<Product> Products get; set; 
 public DbSet<Order>Orders get; set; 
 

And a second one is :

using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;

namespace SportsStore.Models

 public class AppIdentityDbContext : IdentityDbContext<IdentityUser>
 
 public AppIdentityDbContext(DbContextOptions<AppIdentityDbContext> options) : base(options) 
 

Really I don't know what to do.

I want to host this project on Azure. It's part of the PRO MVC CORE 2 from Adam Freeman (I did everything the same as in the book ! ).

I googled this and I only find out this answer: "this object doesn't exist in your database".

Please help me somehow. Thanks !