How to uninstall the program?

Question

linux

Friends help the nub, put on the means of the program manager - Gitter on the desktop. Now I want to delete, I launch the same manager, find gitter and click delete, the log "failed to delete" crashes.
I want to install skype and viber, I get a dialog box, they say if you install it, then gitter will be deleted, I press ok and again the same story. How to be and how to live with it?
text from terminal. Learn how to do it manually.

rm: не удалось изъять '/ usr / local / bin / gitter': Нет такого файла или каталога
rm: не удалось изъять "/usr/share/applications/gitter.desktop ': Нет такого файла или каталога
dpkg: ошибка обработки пакета gitter (--remove):

Answer 1

sudo apt-get purge --auto-remove gitter
Or
Or
Or
Etc.

Answer 2

apparently a failure during removal, or the package is clumsy.

open the file /var/lib/dpkg/status
delete lines related to gitter