Debugger entered--Lisp error: (wrong-type-argument epg-key-p nil)
  signal(wrong-type-argument (epg-key-p nil))
  (condition-case error (setq cipher (epg-encrypt-string context ... ... sign t) pgg-epg-secret-key-id-list nil) (error (while pgg-epg-secret-key-id-list ... ...) (signal ... ...)))
  (let ((context ...) (inhibit-redisplay t) cipher) (epg-context-set-armor context t) (epg-context-set-textmode context pgg-text-mode) (epg-context-set-passphrase-callback context (function pgg-epg-passphrase-callback)) (save-excursion (set-buffer ...) (erase-buffer) (set-buffer ...) (erase-buffer)) (condition-case error (setq cipher ... pgg-epg-secret-key-id-list nil) (error ... ...)) (save-excursion (set-buffer ...) (insert cipher)) t)
  pgg-epg-encrypt-region(1 637 ("steve@sxemacs.org") t nil)
  funcall(pgg-epg-encrypt-region 1 637 ("steve@sxemacs.org") t nil)
  apply(funcall pgg-epg-encrypt-region (1 637 ("steve@sxemacs.org") t nil))
  pgg-invoke("encrypt-region" epg 1 637 ("steve@sxemacs.org") t nil)
  pgg-encrypt-region(1 637 ("steve@sxemacs.org") t)
  mml2015-pgg-encrypt((part (sign . "pgpmime") (encrypt . "pgpmime") (tag-location . 1286) (contents . "\nHi Steve,\n\n* [2006.12.11 01:35 +1000] Steve Youngs wrote:\n                           ^^^^^^^^^^^^\n> * Sebastian Freundt <hroptatyr@sxemacs.org> writes:\n>\n>   > Hm, now that I've seen all the goals, it would have been wise to\n>   > put 22.1.7 in steve@sxemacs.org--2008, would it not? :)\n>\n> Well, the thought did cross my mind, but then I realised that I'd miss\n> all those annual events that involve beer consumption.  You know,\n> birthdays, anniversaries, Octoberfest, any day ending in a `y'. :-)\n\n\nregards,\n-- \nLeo <sdl.web AT gmail.com>                         (GPG Key: 9283AA3F)\n")) t)
  mml2015-encrypt((part (sign . "pgpmime") (encrypt . "pgpmime") (tag-location . 1286) (contents . "\nHi Steve,\n\n* [2006.12.11 01:35 +1000] Steve Youngs wrote:\n                           ^^^^^^^^^^^^\n> * Sebastian Freundt <hroptatyr@sxemacs.org> writes:\n>\n>   > Hm, now that I've seen all the goals, it would have been wise to\n>   > put 22.1.7 in steve@sxemacs.org--2008, would it not? :)\n>\n> Well, the thought did cross my mind, but then I realised that I'd miss\n> all those annual events that involve beer consumption.  You know,\n> birthdays, anniversaries, Octoberfest, any day ending in a `y'. :-)\n\n\nregards,\n-- \nLeo <sdl.web AT gmail.com>                         (GPG Key: 9283AA3F)\n")) t)
  mml-pgpmime-encrypt-buffer((part (sign . "pgpmime") (encrypt . "pgpmime") (tag-location . 1286) (contents . "\nHi Steve,\n\n* [2006.12.11 01:35 +1000] Steve Youngs wrote:\n                           ^^^^^^^^^^^^\n> * Sebastian Freundt <hroptatyr@sxemacs.org> writes:\n>\n>   > Hm, now that I've seen all the goals, it would have been wise to\n>   > put 22.1.7 in steve@sxemacs.org--2008, would it not? :)\n>\n> Well, the thought did cross my mind, but then I realised that I'd miss\n> all those annual events that involve beer consumption.  You know,\n> birthdays, anniversaries, Octoberfest, any day ending in a `y'. :-)\n\n\nregards,\n-- \nLeo <sdl.web AT gmail.com>                         (GPG Key: 9283AA3F)\n")) t)
  mml-generate-mime-1((part (sign . "pgpmime") (encrypt . "pgpmime") (tag-location . 1286) (contents . "\nHi Steve,\n\n* [2006.12.11 01:35 +1000] Steve Youngs wrote:\n                           ^^^^^^^^^^^^\n> * Sebastian Freundt <hroptatyr@sxemacs.org> writes:\n>\n>   > Hm, now that I've seen all the goals, it would have been wise to\n>   > put 22.1.7 in steve@sxemacs.org--2008, would it not? :)\n>\n> Well, the thought did cross my mind, but then I realised that I'd miss\n> all those annual events that involve beer consumption.  You know,\n> birthdays, anniversaries, Octoberfest, any day ending in a `y'. :-)\n\n\nregards,\n-- \nLeo <sdl.web AT gmail.com>                         (GPG Key: 9283AA3F)\n")))
  mml-generate-mime()
  message-encode-message-body()
  mml-to-mime()
  mml-preview(nil)
  call-interactively(mml-preview)