ClassHeadNoVTA1.out

Error found:
in module [33mMain[0m
at tests/purs/failing/ClassHeadNoVTA1.purs:8:10 - 8:19 (line 8, column 10 - line 8, column 19)

  No type class instance was found for
  [33m                [0m
  [33m  Main.Single t0[0m
  [33m                [0m
  The instance head contains unknown type variables.

  Note: The following type class members found in the expression require visible type applications to be unambiguous (e.g. [33mtyClassMember @Int[0m).
    [33mMain.useSingle[0m
      tyNotAppearInBody

while checking that type [33mforall (t12 :: Type) (@tyNotAppearInBody :: t12). Single @t12 tyNotAppearInBody => Int[0m
  is at least as general as type [33mInt[0m
while checking that expression [33museSingle[0m
  has type [33mInt[0m
in value declaration [33msingle[0m

where [33mt0[0m is an unknown type

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