EF Core：Update-Database命令未创建用户表

Question

Following this tutorial I created an ASP.NET Core 1.1.1 - Code first app on VS2017 ver 15.3.3 . The only difference between the tutorial and my app is that I chose Individual User Accounts option and I'm using SQL Server 2012 EXPRESS Db instead of LocalDb. Following commands run fine and do create Blogging database with Blogs and Posts tables. Note: I've not upgraded to .NET Core 2.0 yet on both the computers for compatibility issues with some of our existing applications.

PM> Add-Migration myFirstMigration -context BloggingContext
PM> Update-Database -context BloggingContext

ISSUE

But when I run the following command to generate user tables (ASPNETUsers, ASPNETRols etc) the command runs without any error but the user tables are not created. This was not happening before I upgraded VS2017 to ver 15.3.3. Also, on my other computer (Windows 10 with SQLEXPRESS 2014) I don't have such a problem. This computer is Windows 7. What could possibly be the issue here - and what I may be missing here?

Update-Database -context BloggingContext

.csproj file

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp1.1</TargetFramework>
    <PackageTargetFallback>$(PackageTargetFallback);portable-net45+win8+wp8+wpa81;</PackageTargetFallback>
    <UserSecretsId>aspnet-ForgotPassword-B181AA40-BA34-4A36-A650-38857D8E8177</UserSecretsId>
  </PropertyGroup>


  <ItemGroup>
    <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.0.0" />
    <PackageReference Include="Microsoft.AspNetCore" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.Cookies" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.3" />
    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="1.1.2" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="1.1.2" PrivateAssets="All" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="1.1.2" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer.Design" Version="1.1.2" PrivateAssets="All" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="1.1.1" PrivateAssets="All" />
    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="1.1.2" />
    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="1.1.2" />
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="1.1.1" PrivateAssets="All" />
    <PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink" Version="1.1.2" />
  </ItemGroup>

  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="1.0.1" />
    <DotNetCliToolReference Include="Microsoft.Extensions.SecretManager.Tools" Version="1.0.1" />
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="1.0.1" />
  </ItemGroup>

</Project>

ApplicationDbContextModelShapshot.cs

[DbContext(typeof(ApplicationDbContext))]
partial class ApplicationDbContextModelSnapshot : ModelSnapshot
{
    protected override void BuildModel(ModelBuilder modelBuilder)
    {
        modelBuilder
            .HasAnnotation("ProductVersion", "1.0.0-rc3")
            .HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityRole", b =>
            {
                b.Property<string>("Id");

                b.Property<string>("ConcurrencyStamp")
                    .IsConcurrencyToken();

                b.Property<string>("Name")
                    .HasAnnotation("MaxLength", 256);

                b.Property<string>("NormalizedName")
                    .HasAnnotation("MaxLength", 256);

                b.HasKey("Id");

                b.HasIndex("NormalizedName")
                    .HasName("RoleNameIndex");

                b.ToTable("AspNetRoles");
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityRoleClaim<string>", b =>
            {
                b.Property<int>("Id")
                    .ValueGeneratedOnAdd();

                b.Property<string>("ClaimType");

                b.Property<string>("ClaimValue");

                b.Property<string>("RoleId")
                    .IsRequired();

                b.HasKey("Id");

                b.HasIndex("RoleId");

                b.ToTable("AspNetRoleClaims");
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityUserClaim<string>", b =>
            {
                b.Property<int>("Id")
                    .ValueGeneratedOnAdd();

                b.Property<string>("ClaimType");

                b.Property<string>("ClaimValue");

                b.Property<string>("UserId")
                    .IsRequired();

                b.HasKey("Id");

                b.HasIndex("UserId");

                b.ToTable("AspNetUserClaims");
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityUserLogin<string>", b =>
            {
                b.Property<string>("LoginProvider");

                b.Property<string>("ProviderKey");

                b.Property<string>("ProviderDisplayName");

                b.Property<string>("UserId")
                    .IsRequired();

                b.HasKey("LoginProvider", "ProviderKey");

                b.HasIndex("UserId");

                b.ToTable("AspNetUserLogins");
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityUserRole<string>", b =>
            {
                b.Property<string>("UserId");

                b.Property<string>("RoleId");

                b.HasKey("UserId", "RoleId");

                b.HasIndex("RoleId");

                b.HasIndex("UserId");

                b.ToTable("AspNetUserRoles");
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityUserToken<string>", b =>
            {
                b.Property<string>("UserId");

                b.Property<string>("LoginProvider");

                b.Property<string>("Name");

                b.Property<string>("Value");

                b.HasKey("UserId", "LoginProvider", "Name");

                b.ToTable("AspNetUserTokens");
            });

        modelBuilder.Entity("ForgotPassword.Models.ApplicationUser", b =>
            {
                b.Property<string>("Id");

                b.Property<int>("AccessFailedCount");

                b.Property<string>("ConcurrencyStamp")
                    .IsConcurrencyToken();

                b.Property<string>("Email")
                    .HasAnnotation("MaxLength", 256);

                b.Property<bool>("EmailConfirmed");

                b.Property<bool>("LockoutEnabled");

                b.Property<DateTimeOffset?>("LockoutEnd");

                b.Property<string>("NormalizedEmail")
                    .HasAnnotation("MaxLength", 256);

                b.Property<string>("NormalizedUserName")
                    .HasAnnotation("MaxLength", 256);

                b.Property<string>("PasswordHash");

                b.Property<string>("PhoneNumber");

                b.Property<bool>("PhoneNumberConfirmed");

                b.Property<string>("SecurityStamp");

                b.Property<bool>("TwoFactorEnabled");

                b.Property<string>("UserName")
                    .HasAnnotation("MaxLength", 256);

                b.HasKey("Id");

                b.HasIndex("NormalizedEmail")
                    .HasName("EmailIndex");

                b.HasIndex("NormalizedUserName")
                    .IsUnique()
                    .HasName("UserNameIndex");

                b.ToTable("AspNetUsers");
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityRoleClaim<string>", b =>
            {
                b.HasOne("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityRole")
                    .WithMany("Claims")
                    .HasForeignKey("RoleId")
                    .OnDelete(DeleteBehavior.Cascade);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityUserClaim<string>", b =>
            {
                b.HasOne("ForgotPassword.Models.ApplicationUser")
                    .WithMany("Claims")
                    .HasForeignKey("UserId")
                    .OnDelete(DeleteBehavior.Cascade);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityUserLogin<string>", b =>
            {
                b.HasOne("ForgotPassword.Models.ApplicationUser")
                    .WithMany("Logins")
                    .HasForeignKey("UserId")
                    .OnDelete(DeleteBehavior.Cascade);
            });

        modelBuilder.Entity("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityUserRole<string>", b =>
            {
                b.HasOne("Microsoft.AspNetCore.Identity.EntityFrameworkCore.IdentityRole")
                    .WithMany("Users")
                    .HasForeignKey("RoleId")
                    .OnDelete(DeleteBehavior.Cascade);

                b.HasOne("ForgotPassword.Models.ApplicationUser")
                    .WithMany("Roles")
                    .HasForeignKey("UserId")
                    .OnDelete(DeleteBehavior.Cascade);
            });
    }
}

UPDATE

I tried the above test by selecting ASP.NET Core 2.0 template on another computer that has .NET Core 2.0 and VS2017 ver 15.3.3 and everything worked fine as expected - with same SQL Server version SQLEXPRESS2012 . Blogging Db was created with Blogs and Posts tables and user tables ASPNETUsers, ASPNETRoles etc. So problem seems to be when you have .NET Core 1.1.1 on your system with VS2017 ver 15.3.3 and your are trying to create an ASP.NET Core 1.1.1 web app with Individual User Accounts then ApplicationDbContext does not work.

Answer 1

When running commands to add migrations and update database you are referencing BloggingContext and you are showing us a snapshot of ApplicationDbContext. ApplicationDbContext comes with Individual User Accounts template that you have chosen, so if you want Identity tables (User table is one of them) you should extend ApplicationDbContext instead of creating a new one.

Answer 2

The solution was eventually simple to resolve for me using Visual Studio 2017, using Microsoft.AspNetCore.All 2.0.5.. I wasn't receiving any error messages I just had to change this in my appsettings.json . I had to change " Server=(localdb)\\\\mssqllocaldb; " to this: " Server=Localhost; ." Then I ran the command, " Update-Database " and it created the tables.