Q:

Emacs auto-complete installed by Package from http://marmalade-repo.org/ doesn't work

I'm new to Emacs and the version is 24.
As mentioned in the title, I've installed auto-complete by M-x package-install from Marmalade-repo, and the files lies in ~/.emacs.d/elpa/auto-complete-1.4/.
Then I turned Emacs off and opened a new frame, but nothing happens when coding.
Do I need some configuration to make it run?

A:

I had this same issue.
I fixed it by appending this to my .emacs
/auto-complete/manual.html#Manual_Installation
(add-to-list 'ac-dictionary-directories "~/.emacs.d/dict")
(require 'auto-complete-config)
(ac-config-default)

