[SOLVED] Package listed in MELPA, but not found in package install

Package listed in MELPA, but not found in package install

I am currently trying to install ENSIME for emacs 24.3.1 following the instructions at https://github.com/ensime/ensime-emacs under the quick start; I've added

    (require 'package)
    (add-to-list 'package-archives
             '("melpa" . "http://melpa.milkbox.net/packages/") t)
    (package-initialize)

(when (not package-archive-contents)
  (package-refresh-contents))

to my .emacs file, as instructed. However, when I restart and do M-x package install [RETURN]ensime[RETURN], it returns [No Match] and indeed, I can't find it when I list the packages. However, I can easily find it at http://melpa.milkbox.net/#; what would be causing the discrepancy between what is available through the website and when can be installed from emacs?

Any help is much appreciated; Thank you!

Solution

In my .emacs file I have

;; packages
(when (>= emacs-major-version 24)
  (require 'package)
  (package-initialize)
  (add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/") t)
  )

Then, M-x package-list-packages

C-s ensime

and there you go:

ensime 20140718.... available ENhanced Scala Interaction Mode for Emacs

Are you sure your emacs can actually get access to internet?