path: root/testsuite/tests/generics/GenShouldFail1_0.stderr

GenShouldFail1_0.hs:10:1: error: [GHC-86639]
    • Can't make a derived instance of ‘Generic1 X’:
        You need DeriveGeneric to derive an instance for this class
    • In the stand-alone deriving instance for ‘Generic1 X’