Emacs Yasnippet error (haskell-snippets?)

Debugger entered--Lisp error: (void-variable yas-snippet-dirs)

  add-to-list(yas-snippet-dirs "/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722/snippets" t)

  haskell-snippets-initialize()

  #[nil "\300 \207" [haskell-snippets-initialize] 1]()

  eval-after-load(yasnippet #[nil "\300 \207" [haskell-snippets-initialize] 1])

  byte-code("\300\301\302\"\210\303\304!\207" [eval-after-load yasnippet #[nil "\300 \207" [haskell-snippets-initialize] 1] provide haskell-snippets] 3)

  (haskell-snippets-initialize)

  (lambda nil (haskell-snippets-initialize))()

  eval-after-load(yasnippet (lambda nil (haskell-snippets-initialize)))

  eval-buffer(#<buffer  *load*-982100> nil "/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722/haskell-snippets-autoloads.el" nil t)  ; Reading at buffer position 468

  load-with-code-conversion("/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722/haskell-snippets-autoloads.el" "/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722/haskell-snippets-autoloads.el" nil t)

  load("/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722/haskell-snippets-autoloads" nil t)

  package--activate-autoloads-and-load-path([cl-struct-package-desc haskell-snippets (20160918 1722) "Yasnippets for Haskell" ((cl-lib (0 5)) (yasnippet (0 8 0))) nil nil "/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722" ((:keywords "snippets" "haskell") (:url . "https://github.com/haskell/haskell-snippets")) nil])

  package--load-files-for-activation([cl-struct-package-desc haskell-snippets (20160918 1722) "Yasnippets for Haskell" ((cl-lib (0 5)) (yasnippet (0 8 0))) nil nil "/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722" ((:keywords "snippets" "haskell") (:url . "https://github.com/haskell/haskell-snippets")) nil] nil)

  package-activate-1([cl-struct-package-desc haskell-snippets (20160918 1722) "Yasnippets for Haskell" ((cl-lib (0 5)) (yasnippet (0 8 0))) nil nil "/home/bigdaddytank/.emacs.d/elpa/haskell-snippets-20160918.1722" ((:keywords "snippets" "haskell") (:url . "https://github.com/haskell/haskell-snippets")) nil] nil deps)

  package-activate(haskell-snippets)

  package-initialize()

  eval-buffer(#<buffer  *load*> nil "/home/bigdaddytank/.emacs" nil t)  ; Reading at buffer position 512

  load-with-code-conversion("/home/bigdaddytank/.emacs" "/home/bigdaddytank/.emacs" t t)

  load("~/.emacs" t t)

  #[0 "\205\266