blob: b6e3cc9b129c6a580122099be7af67d399bfa262 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
<interactive>:5:1: error:
No instance for (Show t1) arising from a use of ‘print’
Cannot resolve unknown runtime type ‘t1’
Use :print or :force to determine these types
Relevant bindings include it :: t1 (bound at <interactive>:5:1)
These potential instances exist:
instance (Show a, Show b) => Show (Either a b)
-- Defined in ‘Data.Either’
instance Show All -- Defined in ‘Data.Monoid’
instance forall (k :: BOX) (f :: k -> *) (a :: k).
Show (f a) =>
Show (Alt f a)
-- Defined in ‘Data.Monoid’
...plus 33 others
(use -fprint-potential-instances to see them all)
In a stmt of an interactive GHCi command: print it
<interactive>:7:1: error:
No instance for (Show t1) arising from a use of ‘print’
Cannot resolve unknown runtime type ‘t1’
Use :print or :force to determine these types
Relevant bindings include it :: t1 (bound at <interactive>:7:1)
These potential instances exist:
instance (Show a, Show b) => Show (Either a b)
-- Defined in ‘Data.Either’
instance Show All -- Defined in ‘Data.Monoid’
instance forall (k :: BOX) (f :: k -> *) (a :: k).
Show (f a) =>
Show (Alt f a)
-- Defined in ‘Data.Monoid’
...plus 33 others
(use -fprint-potential-instances to see them all)
In a stmt of an interactive GHCi command: print it
|
