当我将ASPNETCORE_ENVIRONMENT的变量从'Development‘的值改为’Development‘时，Swagger页面无法工作

public class Startup
{
    public Startup(IConfiguration configuration, IWebHostEnvironment env)
    {
        Configuration = configuration;
        CurrentEnvironment = env;
    }

    public IConfiguration Configuration { get; }
    public IWebHostEnvironment CurrentEnvironment { get; }

    // ...

    public void ConfigureServices(IServiceCollection services)
    {
        if (CurrentEnvironment.IsDevelopment())
        {
            // 在开发环境下的配置
        }
        else if (CurrentEnvironment.IsProduction())
        {
            // 在生产环境下的配置
        }
        else
        {
            // 在其他环境下的配置
        }

        // ...
    }

    // ...
}

public void ConfigureServices(IServiceCollection services)
{
    // ...

    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new OpenApiInfo { Title = "My API", Version = "v1" });
    });

    // ...
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    // ...

    app.UseSwagger();
    app.UseSwaggerUI(c =>
    {
        c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
    });

    // ...
}