C#•2y ago

problem with entityframework migration

error: An error occurred while accessing the Microsoft.Extensions.Hosting services. Continuing without the application service provider. Error: Failed to load configuration from file 'C:\Users\peter\source\repos\BlazingBlog\BlazingBlog\appsettings.json'.
Unable to create a 'DbContext' of type ''. The exception 'Unable to resolve service for type 'Microsoft.EntityFrameworkCore.DbContextOptions`1[BlazingBlog.Data.BlogContext]' while attempting to activate 'BlazingBlog.Data.BlogContext'.' was thrown while attempting to create an instance. For the different patterns supported at design time, see https://go.microsoft.com/fwlink/?linkid=851728

code:

using BlazingBlog.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace BlazingBlog.Data
{
    public class BlogContext : DbContext
    {
        public BlogContext(DbContextOptions<BlogContext> options) : base(options)
        {
            
        }

        public DbSet<Category> Categories { get; set; }
        public DbSet<User> Users { get; set; }
        public DbSet<BlogPost> BlogPosts { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            base.OnConfiguring(optionsBuilder);
#if DEBUG
            optionsBuilder.LogTo(Console.WriteLine);
#endif
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            modelBuilder.Entity<User>()
                .HasData(
                    new User
                    {
                        Id = 1,
                        Email = "peter.odrok@outlook.sk",
                        FirstName = "Peter",
                        LastName = "Odak",
                        Salt = "dasdasdasd",
                        Hash = "dsalkdjasklfjdsalkjfdsakljfalskjdas"
                    }
                    );
        }
    }
}

using BlazingBlog.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace BlazingBlog.Data
{
    public class BlogContext : DbContext
    {
        public BlogContext(DbContextOptions<BlogContext> options) : base(options)
        {
            
        }

        public DbSet<Category> Categories { get; set; }
        public DbSet<User> Users { get; set; }
        public DbSet<BlogPost> BlogPosts { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            base.OnConfiguring(optionsBuilder);
#if DEBUG
            optionsBuilder.LogTo(Console.WriteLine);
#endif
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            modelBuilder.Entity<User>()
                .HasData(
                    new User
                    {
                        Id = 1,
                        Email = "peter.odrok@outlook.sk",
                        FirstName = "Peter",
                        LastName = "Odak",
                        Salt = "dasdasdasd",
                        Hash = "dsalkdjasklfjdsalkjfdsakljfalskjdas"
                    }
                    );
        }
    }
}

using BlazingBlog.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace BlazingBlog.Data
{
    public class BlogContext : DbContext
    {
        public BlogContext(DbContextOptions<BlogContext> options) : base(options)
        {
            
        }

        public DbSet<Category> Categories { get; set; }
        public DbSet<User> Users { get; set; }
        public DbSet<BlogPost> BlogPosts { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            base.OnConfiguring(optionsBuilder);
#if DEBUG
            optionsBuilder.LogTo(Console.WriteLine);
#endif
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            modelBuilder.Entity<User>()
                .HasData(
                    new User
                    {
                        Id = 1,
                        Email = "peter.odrok@outlook.sk",
                        FirstName = "Peter",
                        LastName = "Odak",
                        Salt = "dasdasdasd",
                        Hash = "dsalkdjasklfjdsalkjfdsakljfalskjdas"
                    }
                    );
        }
    }
}

using BlazingBlog.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace BlazingBlog.Data
{
    public class BlogContext : DbContext
    {
        public BlogContext(DbContextOptions<BlogContext> options) : base(options)
        {
            
        }

        public DbSet<Category> Categories { get; set; }
        public DbSet<User> Users { get; set; }
        public DbSet<BlogPost> BlogPosts { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            base.OnConfiguring(optionsBuilder);
#if DEBUG
            optionsBuilder.LogTo(Console.WriteLine);
#endif
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            modelBuilder.Entity<User>()
                .HasData(
                    new User
                    {
                        Id = 1,
                        Email = "peter.odrok@outlook.sk",
                        FirstName = "Peter",
                        LastName = "Odak",
                        Salt = "dasdasdasd",
                        Hash = "dsalkdjasklfjdsalkjfdsakljfalskjdas"
                    }
                    );
        }
    }
}

problem with entityframework migration

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