errors/gcs1110.cs

   1 // CS1110: `C.Foo(this string)': Extension methods cannot be declared without a reference to System.Core.dll assembly. Add the assembly reference or remove `this' modifer from the first parameter
   2 // Line: 7
   3 // Compiler options: -noconfig
   4
   5 static class C
   6 {
   7         static void Foo (this string s)
   8         {
   9         }
  10 }