1/1: Building Error (Error.idr) Error.idr:12:18--13:1:While processing right hand side of wrong at Error.idr:12:1--13:1: Sorry, I can't find any elaboration which works. All errors: If Main.length: When unifying Nat and Vect ?n ?a Mismatch between: Nat and Vect ?n ?a If Data.List.length: When unifying Nat and List ?a Mismatch between: Nat and List ?a If Prelude.length: When unifying Nat and String Mismatch between: Nat and String