diff --git a/src/Microsoft.AspNet.Routing/RouteBuilderExtensions.cs b/src/Microsoft.AspNet.Routing/RouteBuilderExtensions.cs
index dba7b90319..6214393f3b 100644
--- a/src/Microsoft.AspNet.Routing/RouteBuilderExtensions.cs
+++ b/src/Microsoft.AspNet.Routing/RouteBuilderExtensions.cs
@@ -49,7 +49,7 @@ namespace Microsoft.AspNet.Routing
 
             var inlineConstraintResolver = routeCollectionBuilder
                                                         .ServiceProvider
-                                                        .GetService<IInlineConstraintResolver>();
+                                                        .GetRequiredService<IInlineConstraintResolver>();
             routeCollectionBuilder.Routes.Add(new TemplateRoute(routeCollectionBuilder.DefaultHandler,
                                                                 name,
                                                                 template,
diff --git a/src/Microsoft.AspNet.Routing/RouteCollection.cs b/src/Microsoft.AspNet.Routing/RouteCollection.cs
index e232347929..4db88233db 100644
--- a/src/Microsoft.AspNet.Routing/RouteCollection.cs
+++ b/src/Microsoft.AspNet.Routing/RouteCollection.cs
@@ -121,7 +121,7 @@ namespace Microsoft.AspNet.Routing
         {
             if (_logger == null)
             {
-                var factory = context.RequestServices.GetService<ILoggerFactory>();
+                var factory = context.RequestServices.GetRequiredService<ILoggerFactory>();
                 _logger = factory.Create<RouteCollection>();
             }
         }
diff --git a/src/Microsoft.AspNet.Routing/RouterMiddleware.cs b/src/Microsoft.AspNet.Routing/RouterMiddleware.cs
index 6a131760ed..789dceeaf9 100644
--- a/src/Microsoft.AspNet.Routing/RouterMiddleware.cs
+++ b/src/Microsoft.AspNet.Routing/RouterMiddleware.cs
@@ -70,7 +70,7 @@ namespace Microsoft.AspNet.Builder
         {
             if (_logger == null)
             {
-                var factory = context.RequestServices.GetService<ILoggerFactory>();
+                var factory = context.RequestServices.GetRequiredService<ILoggerFactory>();
                 _logger = factory.Create<RouterMiddleware>();
             }
         }
diff --git a/src/Microsoft.AspNet.Routing/Template/TemplateRoute.cs b/src/Microsoft.AspNet.Routing/Template/TemplateRoute.cs
index 8f55fb01e4..d2d742c908 100644
--- a/src/Microsoft.AspNet.Routing/Template/TemplateRoute.cs
+++ b/src/Microsoft.AspNet.Routing/Template/TemplateRoute.cs
@@ -295,7 +295,7 @@ namespace Microsoft.AspNet.Routing.Template
         {
             if (_logger == null)
             {
-                var factory = context.RequestServices.GetService<ILoggerFactory>();
+                var factory = context.RequestServices.GetRequiredService<ILoggerFactory>();
                 _logger = factory.Create<TemplateRoute>();
                 _constraintLogger = factory.Create(typeof(RouteConstraintMatcher).FullName);
             }
diff --git a/test/Microsoft.AspNet.Routing.Tests/InlineRouteParameterParserTests.cs b/test/Microsoft.AspNet.Routing.Tests/InlineRouteParameterParserTests.cs
index e7385848b2..dab86f1981 100644
--- a/test/Microsoft.AspNet.Routing.Tests/InlineRouteParameterParserTests.cs
+++ b/test/Microsoft.AspNet.Routing.Tests/InlineRouteParameterParserTests.cs
@@ -301,7 +301,7 @@ namespace Microsoft.AspNet.Routing.Tests
                                 .ConstraintMap
                                 .Add("test", typeof(TestRouteConstraint)));
             var serviceProvider = services.BuildServiceProvider();
-            var accessor = serviceProvider.GetService<IOptions<RouteOptions>>();
+            var accessor = serviceProvider.GetRequiredService<IOptions<RouteOptions>>();
             return new DefaultInlineConstraintResolver(serviceProvider, accessor);
         }
 
diff --git a/test/Microsoft.AspNet.Routing.Tests/Template/TemplateBinderTests.cs b/test/Microsoft.AspNet.Routing.Tests/Template/TemplateBinderTests.cs
index 751da95b50..05300dd6ed 100644
--- a/test/Microsoft.AspNet.Routing.Tests/Template/TemplateBinderTests.cs
+++ b/test/Microsoft.AspNet.Routing.Tests/Template/TemplateBinderTests.cs
@@ -1055,7 +1055,7 @@ namespace Microsoft.AspNet.Routing.Template.Tests
         {
             var services = new ServiceCollection { OptionsServices.GetDefaultServices() };
             var serviceProvider = services.BuildServiceProvider();
-            var accessor = serviceProvider.GetService<IOptions<RouteOptions>>();
+            var accessor = serviceProvider.GetRequiredService<IOptions<RouteOptions>>();
             return new DefaultInlineConstraintResolver(serviceProvider, accessor);
         }
 
diff --git a/test/Microsoft.AspNet.Routing.Tests/Template/TemplateMatcherTests.cs b/test/Microsoft.AspNet.Routing.Tests/Template/TemplateMatcherTests.cs
index 8361406c6a..586c2c8c27 100644
--- a/test/Microsoft.AspNet.Routing.Tests/Template/TemplateMatcherTests.cs
+++ b/test/Microsoft.AspNet.Routing.Tests/Template/TemplateMatcherTests.cs
@@ -823,7 +823,7 @@ namespace Microsoft.AspNet.Routing.Template.Tests
         {
             var services = new ServiceCollection { OptionsServices.GetDefaultServices() };
             var serviceProvider = services.BuildServiceProvider();
-            var accessor = serviceProvider.GetService<IOptions<RouteOptions>>();
+            var accessor = serviceProvider.GetRequiredService<IOptions<RouteOptions>>();
             return new DefaultInlineConstraintResolver(serviceProvider, accessor);
         }
     }
diff --git a/test/Microsoft.AspNet.Routing.Tests/Template/TemplateParserTests.cs b/test/Microsoft.AspNet.Routing.Tests/Template/TemplateParserTests.cs
index 192d90a249..51a9510fa3 100644
--- a/test/Microsoft.AspNet.Routing.Tests/Template/TemplateParserTests.cs
+++ b/test/Microsoft.AspNet.Routing.Tests/Template/TemplateParserTests.cs
@@ -481,7 +481,7 @@ namespace Microsoft.AspNet.Routing.Template.Tests
         {
             var services = new ServiceCollection { OptionsServices.GetDefaultServices() };
             var serviceProvider = services.BuildServiceProvider();
-            var accessor = serviceProvider.GetService<IOptions<RouteOptions>>();
+            var accessor = serviceProvider.GetRequiredService<IOptions<RouteOptions>>();
             return new DefaultInlineConstraintResolver(serviceProvider, accessor);
         }
 
diff --git a/test/Microsoft.AspNet.Routing.Tests/TemplateParserDefaultValuesTests.cs b/test/Microsoft.AspNet.Routing.Tests/TemplateParserDefaultValuesTests.cs
index 66895ba8a5..8f11a587db 100644
--- a/test/Microsoft.AspNet.Routing.Tests/TemplateParserDefaultValuesTests.cs
+++ b/test/Microsoft.AspNet.Routing.Tests/TemplateParserDefaultValuesTests.cs
@@ -110,7 +110,7 @@ namespace Microsoft.AspNet.Routing.Tests
         {
             var services = new ServiceCollection { OptionsServices.GetDefaultServices() };
             var serviceProvider = services.BuildServiceProvider();
-            var accessor = serviceProvider.GetService<IOptions<RouteOptions>>();
+            var accessor = serviceProvider.GetRequiredService<IOptions<RouteOptions>>();
             return new DefaultInlineConstraintResolver(serviceProvider, accessor);
         }
     }