how to store ocelot configuration in consul

Question

Hi. I want to store configuration in consul following doc (http://ocelot.readthedocs.io/en/latest/features/configuration.html#store-configuration-in-consul) ; but i can't running successfully 

 public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc();

             services.AddOcelot().AddStoreOcelotConfigurationInConsul();
        }

public async void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            await app.UseOcelot();

            // app.UseAuthentication();

            app.UseMvc();
        }


Program.cs
public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseContentRoot(Directory.GetCurrentDirectory())
                .ConfigureAppConfiguration((builderContext, config) =>
                {
                    config
                       .SetBasePath(builderContext.HostingEnvironment.ContentRootPath)
                       .AddJsonFile("ocelot.json", optional: false, reloadOnChange: true)
                       .AddEnvironmentVariables();
                })
                .UseStartup<Startup>()
                .Build();