C#•4mo ago

dotnet-ef error creating migrations

Im following a youtube tutorial to create a discord bot and in a part the author connects to a database. (vid for reference: https://www.youtube.com/watch?v=EHmtrqb5VMk&list=PLS6sInD7ThM0Zb8F_KBl4T_jGF1e3apsc&index=11) (P.S excuse my cringe project name) When im calling the command from CMD its like this:

dotnet-ef migrations add InitialCreate -p ../SadBot.Migrations/SadBot.Migrations.csproj --context SadBot.Core.Database.RPGContext --startup-project ./SadMemerBot.csproj

dotnet-ef migrations add InitialCreate -p ../SadBot.Migrations/SadBot.Migrations.csproj --context SadBot.Core.Database.RPGContext --startup-project ./SadMemerBot.csproj

And then i get this error: No DbContext named 'RPGContext' was found. Or with full path No DbContext named 'SadBot.Core.Database.RPGContext' was found. Im following exactly and linking projects together, saving the csproj files and i can import my class in the program.cs so they are linked.. Why creating migrations doesnt work then? My Project strucutre is like so:

SadBot (solution)
    -/SadBot.Core
           -/Database
              -/Entity.cs
              -/RPGContext.cs
    -/SadBot.Migrations
    -/SadMemerBot (Startup proj)
       -/Program.cs

SadBot (solution)
    -/SadBot.Core
           -/Database
              -/Entity.cs
              -/RPGContext.cs
    -/SadBot.Migrations
    -/SadMemerBot (Startup proj)
       -/Program.cs

Dapper Dino

YouTube

How To Make A C# Discord Bot - Creating A Database - Part 10

Join Our Community: https://student.dapperdino.co.uk/ ----------------------------------------------------------------------------------------------------------- Just Here To Plug My Social Media Stuff: https://www.patreon.com/dapperdino https://www.twitch.tv/dapper_dino https://twitter.com/dapperdino4 https://github.com/DapperDino https://disco...

2 Replies

Pobiega•4mo ago

Could you share the code for your RPGContext.cs file, and also Program.cs?

TiltyboiOP•4mo ago

Program.cs

namespace SadMemerBot
{
    public class Program
    {
        private DiscordSocketClient _client;

        private Program()
        {
            _client = new DiscordSocketClient(); // commented out for abbrevity
        }

        public static Task Main(string[] args) => new Program().MainAsync(args);

        public async Task MainAsync(string[] args)
        {
            var host = Host.CreateApplicationBuilder(args);
          

            //Add any other services here
              // services .....
            var sqlDbConn = host.Configuration.GetConnectionString("SqlConnection");
            host.Services.AddDbContext<RPGContext>(options =>
            {
                options.UseSqlServer(sqlDbConn, x => x.MigrationsAssembly("SadBot.Migrations"));
            });

            var runner = host.Build();
            await runner.RunAsync();
        }

namespace SadMemerBot
{
    public class Program
    {
        private DiscordSocketClient _client;

        private Program()
        {
            _client = new DiscordSocketClient(); // commented out for abbrevity
        }

        public static Task Main(string[] args) => new Program().MainAsync(args);

        public async Task MainAsync(string[] args)
        {
            var host = Host.CreateApplicationBuilder(args);
          

            //Add any other services here
              // services .....
            var sqlDbConn = host.Configuration.GetConnectionString("SqlConnection");
            host.Services.AddDbContext<RPGContext>(options =>
            {
                options.UseSqlServer(sqlDbConn, x => x.MigrationsAssembly("SadBot.Migrations"));
            });

            var runner = host.Build();
            await runner.RunAsync();
        }

And then RPGContext:

using Microsoft.EntityFrameworkCore;
using SadBot.Core.Database.Models.Items;

namespace SadBot.Core.Database
{
    public class RPGContext : DbContext
    {
        public RPGContext(DbContextOptions<RPGContext> options) : base(options) { }
        public DbSet<Item> Items { get; set; }
    }
}

using Microsoft.EntityFrameworkCore;
using SadBot.Core.Database.Models.Items;

namespace SadBot.Core.Database
{
    public class RPGContext : DbContext
    {
        public RPGContext(DbContextOptions<RPGContext> options) : base(options) { }
        public DbSet<Item> Items { get; set; }
    }
}

Gaming

Programming

dotnet-ef error creating migrations