RefTex: wrong type argument

[Boris Hollas]

Hi,

RefTex keeps annoying me with messages "wrong type argument:  
number-or-marker-p, nil" each time I want to insert a label. I first  
thought my reftex-mode-hook was faulty, but even with the hook commented  
out the message appears. The same is true for C-c = (toc), which doesn't  
work. I use Emacs 21.3.1 with CUA-mode and the following reftex-mode-hook  
(currently disabled):

;--- Reftex ---
;(add-hook 'reftex-mode-hook
;          (function (lambda ()
;              (setq reftex-save-parse-info t
;                reftex-use-multiple-selection-buffers t)
;              (set 'reftex-label-alist '(
;                ("aufgabe" ?a "aufg:" "~\\ref{%s}" nil ("Aufgabe"))
;                ("beispiel" ?b "bsp:" "~\\ref{%s}" nil ("Beispiel"))
;                ("korollar" ?k "kor:" "~\\ref{%s}" nil ("Korollar"))
;                ("lemma" ?m "lem:" "~\\ref{%s}" nil ("Lemma"))
;                ("satz" ?z "satz:" "~\\ref{%s}" nil ("Satz"))
;               (nil ?s nil nil nil ("Kapitel" "Kap." "Abschnitt"))
;                (nil ?t nil nil nil ("Tabelle"))
;                (nil ?f nil nil nil ("Abbildung" "Abb."))
;               ))
;              (set 'reftex-insert-label-flags '("s" "sftabdekmz"))
;)))

Sometimes however RefTex does work with the same .emacs and the same  
tex-file. Maybe it depends on /dev/random.
--
Boris