Install libghc-word8-prof by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-word8-prof
Description:
functions for Word8s to be used with ByteStrings; profiling libraries
This is a Word8 library to be used with Data.ByteString. All function assumes that Word8 is encoded in Latin-1 (ISO-8859-1). All utility functions are supposed to work as if those of Char. Exceptions are described in the function documentations. . This package provides a library for the Haskell programming language, compiled for profiling. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://hackage.haskell.org/package/word8
Version: 0.1.3-1
Section: universe/haskell