swagger.json not generated

[jarnaiz]

Im using .net core v5 and the json file returns 404.

No errors founds...

my startup.cs looks like:

// Services

services.AddSwaggerGen(opts => {
    opts.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme
    {
        Description = "JWT Authorization header using the Bearer scheme. Example: \"Authorization: Bearer {token}\"",
        Name = "Authorization",
        BearerFormat = "JWT",
        Scheme = "Bearer",
        In = ParameterLocation.Header,
        Type = SecuritySchemeType.Http,
    });
    opts.AddSecurityRequirement(new OpenApiSecurityRequirement {
       {
         new OpenApiSecurityScheme
         {
           Reference = new OpenApiReference
           {
             Type = ReferenceType.SecurityScheme,
             Id = "Bearer"
           }
          },
          new string[] { }
        }
      });
});
services.AddSwaggerGenWithConventionalRoutes(options =>
{
    options.SkipDefaults = true;
});

// Configure
app.UseSwagger();

// Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
// specifying the Swagger JSON endpoint.
app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("v1/swagger.json", "Endurance V1");
});

 app.UseEndpoints(endpoints =>
{
      endpoints.MapControllers();

      endpoints.MapAreaControllerRoute(
         name: "ficha",
         areaName: "Ficha",
         pattern: "{controller}/{id}",
         defaults: new { controller = "Ficha", action = "Index" },
         constraints: new { id = @"\d+" }
      );

      endpoints.MapControllerRoute(
          name: "default",
          pattern: "{controller=Home}/{action=Index}/{id?}");

    ConventionalRoutingSwaggerGen.UseRoutes(endpoints);

});

Any suggestion? Thanks!