-
+
drvfail004.hs:5:
Could not deduce `Eq (Foo a b)'
(arising from an instance declaration at drvfail004.hs:5)
- from the context (Ord a, Ord b)
- Probable cause: missing `Eq (Foo a b)' in instance declaration context
+ from the context: (Ord a1, Ord b1)
+ Probable cause: missing `Eq (Foo a b)'
+ in instance declaration context
or missing instance declaration for `Eq (Foo a b)'
When checking the superclasses of an instance declaration
-
Compilation had errors