Trouble with custom report options

[Jon Schewe]

All,

I'm trying to create a report with some options that are disabled when
others are not selected. Below are my 2 options. When I select the Memo
option I get a critical error. Does anyone know why the set_selectable
field is null? Am I missing some initialization.

CRIT <gnc.app-utils> gnc_option_set_selectable: assertion
'option->odb->set_selectable != NULL' failed


  (gnc:register-trep-option
   (gnc:make-simple-boolean-option
    gnc:pagename-display (N_ "Notes") "d2" (N_ "Display the notes if the
memo is unavailable?") #t))

  ;; Add an option to display the memo, and disable the notes option
  ;; when memos are not included.
  (gnc:register-trep-option
   (gnc:make-complex-boolean-option
    gnc:pagename-display (N_ "Memo")
    "d"  (N_ "Display the memo?") #t
    #f
    (lambda (x) (gnc-option-db-set-option-selectable-by-name
gnc:*transaction-report-options*
gnc:pagename-display
(N_ "Notes")
x))))


Thank you,
- Jon


-- 
http://mtu.net/~jpschewe