Error found:
in module Main
at tests/purs/failing/2378.purs:6:1 - 6:25 (line 6, column 1 - line 6, column 25)

  Orphan instance fooX found for
               
    Lib.Foo "x"
               
  This problem can be resolved by declaring the instance in Lib, or by defining the instance on a newtype wrapper.

in type class instance
             
  Lib.Foo "x"
             

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