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GenCannotDoRep0_0.hs:6:14: Warning:
-XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language.
GenCannotDoRep0_0.hs:13:45:
Can't make a derived instance of ‘Generic Dynamic’:
Constructor ‘Dynamic’ has existentials or constraints in its type
Possible fix: use a standalone deriving declaration instead
In the data declaration for ‘Dynamic’
GenCannotDoRep0_0.hs:17:1:
Can't make a derived instance of ‘Generic (P Int)’:
P must not be instantiated; try deriving `P a' instead
In the stand-alone deriving instance for ‘Generic (P Int)’
GenCannotDoRep0_0.hs:26:1:
Can't make a derived instance of ‘Generic (D Char Char)’:
D must not be instantiated; try deriving `D Char b' instead
In the stand-alone deriving instance for ‘Generic (D Char Char)’
GenCannotDoRep0_0.hs:28:1:
Can't make a derived instance of ‘Generic (D Int a)’:
D must not have a datatype context
In the stand-alone deriving instance for ‘Generic (D Int a)’
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