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1. DerivErrBadConWrongArg :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon must use the type variable only as the last argument of a data type

2. DerivErrBadConstructor :: !Maybe HasWildcard -> [DeriveInstanceBadConstructor] -> DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   We couldn't derive an instance for a particular data constructor for a variety of reasons.

3. DerivErrBootFileFound :: DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   No documentation available.

4. DerivErrCannotEtaReduceEnough :: Bool -> DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   No documentation available.

5. DerivErrDataConsNotAllInScope :: TyCon -> DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   No documentation available.

6. DerivErrDerivingViaWrongKind :: Kind -> Type -> Kind -> DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   No documentation available.

7. DerivErrDunnoHowToDeriveForType :: Type -> DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   GHC simply doesn't how to how derive the input Class for the given Type.

8. DerivErrEnumOrProduct :: DeriveInstanceErrReason -> DeriveInstanceErrReason -> DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   We couldn't derive an instance either because the type was not an enum type or because it did have more than one constructor.

9. DerivErrGNDUsedOnData :: DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   We cannot use GND on non-newtype types

10. DerivErrGenerics :: [DeriveGenericsErrReason] -> DeriveInstanceErrReason

    ghc-lib-parser	GHC.Tc.Errors.Types

    We couldn't derive a Generic instance for the given type for a variety of reasons

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