Skip to content

Instantly share code, notes, and snippets.

@kowey
Created October 3, 2017 14:04
Show Gist options
  • Save kowey/a24715ea3d41d87e52dc7fdc4a3d73f2 to your computer and use it in GitHub Desktop.
Save kowey/a24715ea3d41d87e52dc7fdc4a3d73f2 to your computer and use it in GitHub Desktop.
src/Data/Semigroup/Instances.hs:11:10: error:
Duplicate instance declarations:
instance Measured v a => Semigroup (FingerTree v a)
-- Defined at src/Data/Semigroup/Instances.hs:11:10
instance [safe] Measured v a => Semigroup (FingerTree v a)
-- Defined in ‘Data.FingerTree’
|
11 | instance Measured v a => Semigroup (FingerTree v a) where
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment