Font not available in Debian Jessie

[frgomes]

Thanks a lot for your great work on emacs-for-scala!

I guess the init.el should not make assumptions about the platform it is running on.

Debugger entered--Lisp error: (error "Font not available" #<font-spec nil nil Source\ Code\ Pro nil nil nil nil nil 18.0 nil nil nil ((:name . "Source Code Pro-18") (user-spec . "Source Code Pro-18"))>)
  internal-set-lisp-face-attribute(default :font "Source Code Pro-18" #<frame [email protected] 0x116ca78>)
  set-face-attribute(default #<frame [email protected] 0x116ca78> :width normal :weight normal :slant normal :font "Source Code Pro-18")
  set-frame-font("Source Code Pro-18" nil t)
  eval-buffer(#<buffer  *load*> nil "/home/richard/.emacs.d/init.el" nil t)  ; Reading at buffer position 8641
  load-with-code-conversion("/home/richard/.emacs.d/init.el" "/home/richard/.emacs.d/init.el" t t)
  load("/home/richard/.emacs.d/init" t t)
  #[0 "\205\262