On Monday, 9 October 2017 at 15:22:54 UTC, Adam D. Ruppe wrote: > On Monday, 9 October 2017 at 15:15:48 UTC, Zhuo Nengwen wrote: >> test(cast(ushort) 1, (m, c) => { >> writeln(m); >> writeln(m); >> }); > > Just remove the => > > (m, c) { > // code here > } Common mistake from people who worked with LINQ in C#.