Install gir1.2-langtag-0.6 by entering the following commands in the terminal:
sudo apt update sudo apt install gir1.2-langtag-0.6
Description:
library to access tags for identifying languages - introspection
liblangtag is an interface library to access/deal with tags for identifying languages, which is described in RFC 5646 . This package contains the Introspection data for LangTag.
Homepage: http://tagoh.bitbucket.org/liblangtag/
Version: 0.6.2-1
Section: introspection