Error found:
in module Main
at tests/purs/failing/CoercibleRepresentational5.purs:15:38 - 15:44 (line 15, column 38 - line 15, column 44)

  No type class instance was found for
                                
    Prim.Coerce.Coercible Int   
                          String
                                

while solving type class constraint
                                                                   
  Prim.Coerce.Coercible (MutuallyRecursiveRepresentational2 Int)   
                        (MutuallyRecursiveRepresentational2 String)
                                                                   
while checking that type forall (a :: Type) (b :: Type). Coercible @Type a b => a -> b
  is at least as general as type MutuallyRecursiveRepresentational2 Int -> MutuallyRecursiveRepresentational2 String
while checking that expression coerce
  has type MutuallyRecursiveRepresentational2 Int -> MutuallyRecursiveRepresentational2 String
in value declaration representationalToRepresentational

See https://github.com/purescript/documentation/blob/master/errors/NoInstanceFound.md for more information,
or to contribute content related to this error.