Install libparse-exuberantctags-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libparse-exuberantctags-perl
exuberant ctags parser for Perl
Parse::ExuberantCTags parses ctags files and handles both traditional ctags as well as extended ctags files such as produced with Exuberant ctags. It does not handle emacs-style "etags" files. . The module is implemented as a wrapper around the readtags library that normally ships with Exuberant ctags. If you do not know what that is, you are encouraged to have a look at http://ctags.sourceforge.net/ and look at the exuberant-ctags package.