Не работает 'SwaggerEndpoint'

..
 
builder.Services.AddOpenApi();
 
var app = builder.Build();
 
app.MapOpenApi();
 
app.UseSwaggerUI(options =>
{
    options.SwaggerEndpoint("/openapi/v1.json", "v1");
});
 
..

var builder = WebApplication.CreateBuilder(args);
 
// Add services to the container.
// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
builder.Services.AddOpenApi();
 
var app = builder.Build();
 
// Configure the HTTP request pipeline.
app.MapOpenApi();
app.UseSwaggerUI(options =>
{
    options.SwaggerEndpoint("/openapi/v1.json", "v1");
});
 
app.UseHttpsRedirection();
 
var summaries = new[]
{
    "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
};
 
app.MapGet("/weatherforecast", () =>
{
    var forecast = Enumerable.Range(1, 5).Select(index =>
            new WeatherForecast
            (
                DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
                Random.Shared.Next(-20, 55),
                summaries[Random.Shared.Next(summaries.Length)]
            ))
        .ToArray();
    return forecast;
})
    .WithName("GetWeatherForecast");
 
app.MapGet("/rng", () => new { Number = Random.Shared.Next(-100, 100) })
    .WithName("random-number");
 
app.Run();
 
record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
{
    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
}

app.MapOpenApi();
app.UseSwaggerUI();

builder.Services.AddOpenApi();

app.MapOpenApi();