From 7f4e3645f268b2949b2cc540e7823e9610006edd Mon Sep 17 00:00:00 2001
From: John Luo <jt.luo@mail.utoronto.ca>
Date: Fri, 20 May 2016 16:03:57 -0700
Subject: [PATCH] Update ConfigureServicesBuilder exception message #502

---
 .../Internal/ConfigureServicesBuilder.cs                        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Microsoft.AspNetCore.Hosting/Internal/ConfigureServicesBuilder.cs b/src/Microsoft.AspNetCore.Hosting/Internal/ConfigureServicesBuilder.cs
index 9f2d9390e4..1c05894119 100644
--- a/src/Microsoft.AspNetCore.Hosting/Internal/ConfigureServicesBuilder.cs
+++ b/src/Microsoft.AspNetCore.Hosting/Internal/ConfigureServicesBuilder.cs
@@ -22,7 +22,7 @@ namespace Microsoft.AspNetCore.Hosting.Internal
             if (parameters.Length > 1 ||
                 parameters.Any(p => p.ParameterType != typeof(IServiceCollection)))
             {
-                throw new InvalidOperationException("ConfigureServices can take at most a single IServiceCollection parameter.");
+                throw new InvalidOperationException("The ConfigureServices method must either be parameterless or take only one parameter of type IServiceCollection.");
             }
 
             MethodInfo = configureServices;