// CS1502: The best overloaded method match for `X.M(string)' has some invalid arguments // Line: 23 delegate void D1 (object o); delegate void D2 (); class C { public C (D1 d) { } public C (D2 d) { } } class X { void Foo () { new C (delegate (object state) { M (1); }); } void M (string s) { } }