Install libghc-vector-instances-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-vector-instances-doc
Description:
orphan instances for Data.Vector; documentation
Keyed, Zip, ZipWithKey, Indexable, Lookup, Adjustable, FoldableWithKey, Apply, Pointed, Bind, Semigroup, Alt, Plus, TraversableWithKey, Extend, Unbox, Storable, and Prim instances for Vector. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://github.com/ekmett/vector-instances
Version: 3.4-1build2
Section: universe/doc