blob: 4f09814afa5d58e10dc5a09d6ba8ac267d883d48 (
plain)
1
2
3
4
5
6
7
8
9
10
|
tcfail017.hs:10:10:
Could not deduce (C [a])
arising from the superclasses of an instance declaration
from the context (B a)
bound by the instance declaration at tcfail017.hs:10:10-23
Possible fix:
add (C [a]) to the context of the instance declaration
or add an instance declaration for (C [a])
In the instance declaration for `B [a]'
|