mcs/errors/cs4008.cs

   1 // CS4008: Cannot await void method `X.Foo()'. Consider changing method return type to `Task'
   2 // Line: 10
   3
   4 using System.Threading.Tasks;
   5
   6 class X
   7 {
   8         static async void Test ()
   9         {
  10                 await Foo ();
  11         }
  12
  13         static async void Foo ()
  14         {
  15                 await Task.FromResult (1);
  16         }
  17 }