System.InvalidOperationException: Cannot be changed after headers are sent.
at System.Net.HttpListenerResponse.set_StatusCode (Int32 value) [0x00027] in /private/tmp/source-mono-4.4.0-c7sr0/bockbuild-mono-4.4.0-branch-c7sr0/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System/System.Net/HttpListenerResponse.cs:216
at Cake.SimpleHTTPServer.CakeHttpServer.ProcessRequest (System.Net.HttpListenerContext context) [0x00197] in /Users/wk/Source/csharp/Cake.SimpleHTTPServer/Cake.SimpleHTTPServer/CakeHttpServer.cs:70
at Cake.SimpleHTTPServer.MultiThreadHttpServer.Worker () [0x0007e] in /Users/wk/Source/csharp/Cake.SimpleHTTPServer/Cake.SimpleHTTPServer/MultiThreadHttpServer.cs:76
Mono OS X