C# ASP.NET Core InvalidOperationException:尝试激活UserStore时无法解析DbContext类型的服务

我的应用程序中有这个DbContext，它使用IdentityDbContext

public class ShopDbContext : IdentityDbContext<User>, IDisposable
    {


        public ShopDbContext(DbContextOptions options): base(options)
        {            
            Products = base.Set<Product>();
            Categories = base.Set<Category>();
            Shops = base.Set<Shop>();
            Properties = base.Set<Property>();
            Orders = base.Set<Order>();
            OrderItems = base.Set<OrderItem>();
            Customers = base.Set<Customer>();
            Carts = base.Set<Cart>();
            CartItems = base.Set<CartItem>();
            UserShops = base.Set<UserShop>();
            Images = base.Set<Image>();

        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            // Use singular table names
            modelBuilder.ApplyConfiguration<Product>(new ProductConfiguration());
            modelBuilder.ApplyConfiguration<Category>(new CategoryConfiguration());
            modelBuilder.ApplyConfiguration<Shop>(new ShopConfiguration());
            modelBuilder.ApplyConfiguration<Property>(new PropertyConfiguration());
            modelBuilder.ApplyConfiguration<Order>(new OrderConfiguration());
            modelBuilder.ApplyConfiguration<OrderItem>(new OrderItemConfiguration());
            modelBuilder.ApplyConfiguration<Customer>(new CustomerConfiguration());
            modelBuilder.ApplyConfiguration<Cart>(new CartConfiguration());
            modelBuilder.ApplyConfiguration<CartItem>(new CartItemConfiguration());
            modelBuilder.ApplyConfiguration<UserShop>(new UserShopConfiguration());
            modelBuilder.ApplyConfiguration<Image>(new ImageConfiguration());
        }

        public DbSet<Shop> Shops { get; set; }
        public DbSet<Category> Categories { get; set; }
        public DbSet<Product> Products { get; set; }
        public DbSet<Property> Properties { get; set; }
        public DbSet<Order> Orders { get; set; }
        public DbSet<OrderItem> OrderItems { get; set; }
        public DbSet<Customer> Customers { get; set; }
        public DbSet<Cart> Carts { get; set; }
        public DbSet<CartItem> CartItems { get; set; }
        public DbSet<UserShop> UserShops { get; set; }
        public DbSet<Image> Images { get; set; }

    }

我认为问题在于我设置DbContextFactory的方式，但是当我遵循它提供的示例时，我使用了相同的方法

此外，我的连接字符串是：

"ConnectionStrings": {
    "DefaultConnection": "User ID=sa; Password=123456;Server=.\\sqlexpress;Database=ShopDb;"
  } 

当我尝试使用Package Manager update database生成数据库时，出现以下错误：

Format of the initialization string does not conform to specification starting at index 0.

试着换成这个

 public ShopDbContext(DbContextOptions<ShopDbContext> options): base(options)

公共ShopDbContext（DbContextOptions）：基本（选项） 并改变它

 services.AddDbContextFactory<ShopDbContext>(builder => 
            builder.UseSqlServer("DefaultConnection"));

services.AddDbContextFactory（生成器=>
builder.UseSqlServer（“默认连接”）；

对此

string connectionString = Configuration.GetConnectionString("DefaultConnection");
services.AddDbContextFactory<DbContext,ShopDbContext>(builder => 
            builder.UseSqlServer(connectionString));

stringconnectionstring=Configuration.GetConnectionString（“DefaultConnection”）；
services.AddDbContextFactory（生成器=>
UseSqlServer（connectionString））；

试着换成这个

 public ShopDbContext(DbContextOptions<ShopDbContext> options): base(options)

公共ShopDbContext（DbContextOptions）：基本（选项） 并改变它

 services.AddDbContextFactory<ShopDbContext>(builder => 
            builder.UseSqlServer("DefaultConnection"));

services.AddDbContextFactory（生成器=>
builder.UseSqlServer（“默认连接”）；

对此

string connectionString = Configuration.GetConnectionString("DefaultConnection");
services.AddDbContextFactory<DbContext,ShopDbContext>(builder => 
            builder.UseSqlServer(connectionString));

stringconnectionstring=Configuration.GetConnectionString（“DefaultConnection”）；
services.AddDbContextFactory（生成器=>
UseSqlServer（connectionString））；

Dudu，您传入dbContext而不是connectionString，如“User ID=sa；Password=123456；Server=.\\sqlexpress；Database=ShopDb；”，您只传入“DefaultConnection”（它不是connectionString，只是appSettings文件中的一部分）Dudu，您传入dbContext而不是connectionString“用户ID=sa；密码=123456；服务器=。\\sqlexpress；数据库=ShopDb；，您只需传递“DefaultConnection”（它不是connectionString，只是appSettings文件中的部分）

string connectionString = Configuration.GetConnectionString("DefaultConnection");
services.AddDbContextFactory<DbContext,ShopDbContext>(builder => 
            builder.UseSqlServer(connectionString));