EF Core 8 does not create migration files anymore

Question

I am at the end with my nerves, since around a month I cannot create any migration files anymore with EF Core 8. Those are the project references for EF Core I have in my *.csproj file which I use to add-migration.

It did work before, but not anymore. I had on my laptop a branch, with which I created a migration and even with that branch I can't create any migration files anymore.

<PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Abstractions" Version="8.0.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.2">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.2">
    <PrivateAssets>all</PrivateAssets>
    <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>

What have I done already:

• Added DesignTimeDbContextFactory
• Checked if I have correctly configured ApplicationDbContext and added DbSet<> with the correct model
• I have in ApplicationDbContext a empty constructor
• ApplicationDbContext is registered in Program.cs
• Checked if DB connection is correct and if it is connecting
• Searched with Github Copilot for a solution and told me that there is no error.
• Deleted current migration files and Snapshot file, still did not work

Both work, I debugged them.

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

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        var configuration = new ConfigurationBuilder()
            .SetBasePath(AppDomain.CurrentDomain.BaseDirectory)
            .AddJsonFile("appsettings.json")
            .Build();

        optionsBuilder.UseSqlServer(configuration.GetConnectionString("DefaultConnection"));
        base.OnConfiguring(optionsBuilder);
    }

    // Here are all the DbSet<> like this:
    public DbSet<MyEntity> MyEntities => Set<MyEntity>();
}

public class DesignTimeDbContextFactory : IDesignTimeDbContextFactory<ApplicationDbContext>
{
    public ApplicationDbContext CreateDbContext(string[] args)
    {
        var configuration = new ConfigurationBuilder()
                        .SetBasePath(AppDomain.CurrentDomain.BaseDirectory)
                        .AddJsonFile("appsettings.json")
                        .Build();
        var optionsBuilder = new DbContextOptionsBuilder<ApplicationDbContext>();
        optionsBuilder.UseSqlServer(configuration.GetConnectionString("DefaultConnection"));

        return new ApplicationDbContext(optionsBuilder.Options);
    }
}

UPDATE:

In order to get it to run, I have reallocated the ApplicationDbContext in its own project. My luck is that I already had the Enities in a own project :)

Other wise I would had to reallocate them too :(