title: Unable to find Use.RunTimePageInfo() method in startup.cs file in asp.net core
body: <p>I'm following Scott Allen's Asp.Net core Pluralsight course in Ubuntu 16.04 .Net Core 1.0.0 framework. I'm unable to find the app.UseRuntimeInfoPage method in Configure method in StartUp.cs file, even though I have included Microsoft.AspNetCore.Diagnostics. Does the framework have limitations for the non-windows operating systems in terms of the features provided?</p>
  <p>StartUp.cs code from Scott Allen's course</p>
  <pre class="lang-cs prettyprint-override"><code>using Microsoft.AspNet.Builder;
  using Microsoft.AspNet.Hosting;
  using Microsoft.AspNet.Http;
  using Microsoft.Extensions.DependencyInjection;
  using Microsoft.Extensions.Configuration;
  using OdeToFood.Services;
  
  namespace OdeToFood
  {
      public class Startup
      {
          public Startup()
          {
              var builder = new ConfigurationBuilder()
                              .AddJsonFile(&quot;appsettings.json&quot;);
              Configuration = builder.Build();
          }
  
          public IConfiguration Configuration { get; set; }
  
          // This method gets called by the runtime. Use this method to add services to the container.
          // For more information on how to configure your application, visit http://go.microsoft.com/fwlink/?LinkID=398940
          public void ConfigureServices(IServiceCollection services)
          {
              services.AddMvc();
              services.AddSingleton(provider =&gt; Configuration);
              services.AddSingleton&lt;IGreeter, Greeter&gt;();
          }
  
          // This method gets called by the runtime. 
          // Use this method to configure the HTTP request pipeline.
          public void Configure(
              IApplicationBuilder app,
              IHostingEnvironment environment,
              IGreeter greeter)
          {
              app.UseIISPlatformHandler();
  
              if (environment.IsDevelopment())
              {
                  app.UseDeveloperExceptionPage();
              }
              
              app.UseRuntimeInfoPage(&quot;/info&quot;);
  
              app.UseFileServer();
  
              app.UseMvcWithDefaultRoute();
  
              app.Run(async (context) =&gt;
              {
                  var greeting = greeter.GetGreeting();
                  await context.Response.WriteAsync(greeting);
              });
  
          }
  
          // Entry point for the application.
          public static void Main(string[] args) =&gt; WebApplication.Run&lt;Startup&gt;(args);
      }
  }
  </code></pre>