I installed ibuffer-sidebar (https://github.com/jojojames/ibuffer-sidebar) and added the following to my ~/.emacs.d/init.el:
(use-package "ibuffer-sidebar.el") (require 'ibuffer-sidebar) (setq ibuffer-sidebar-use-custom-font t) (setq ibuffer-sidebar-face `(:family "Helvetica" :height 120)) After doing this, all helm commands fail. E.g. helm-find-files says In Find FIles source: helm-find-fules-get-candidates (void-variable command). Other helm commands just say symbol's value as variable is void: command. I'm a newbie, very excited about emacs.
(use-package)with quotes and appending the .el extension? That's not how you usuallyuse-packages.