Install libghc-yesod-default-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-yesod-default-doc
Description:
default config and main functions for your Yesod application; documentation
This is a temporary shim to make things easier for git-annex. It serves no other purpose. . This package contains the documentation files.
Homepage: http://www.yesodweb.com/
Version: 1.2.0-8build10
Section: universe/doc