Expression bodied functions

Jul 27, 2015 at 5:25 PM
When I'm using an expression body StyleCop fails at the MSBuild stage. Looks like the parser may need updating.
namespace TestNamespace
{
  using System;

  public class TestClass
  {
    public string TestProp(string a, string b) => a + " " + b;
  }

  public class TestCaller
  {
    public TestCaller()
    {
      var test= new TestClass();
      Console.WriteLine(test.TestProp("Hello", "World"));
    }
  }
}
Error:
SA0102 : CSharp.CsParser : A syntax error has been discovered in file C:\test\TestClass.cs on line 7