wrong-type-argument wholenump -257

[jgkamat]

When using doc-view mode, and switching tab-groups/tabs after I move a few lines down (with c-n), I get this error. I've pasted the error below:

Debugger entered--Lisp error: (wrong-type-argument wholenump -257)
  posn-at-point()
  event-start(nil)
  (or (event-start nil) (list (selected-window) (point) (quote (0 . 0)) 0))
  (list (or (memq type (quote (mouse-2 mouse-3))) (quote mouse-1)) (or (event-start nil) (list (selected-window) (point) (quote (0 . 0)) 0)))
  (if (tabbar-click-p type) type (list (or (memq type (quote (mouse-2 mouse-3))) (quote mouse-1)) (or (event-start nil) (list (selected-window) (point) (quote (0 . 0)) 0))))
  tabbar-make-mouse-event(nil)
  (funcall tabbar-select-tab-function (tabbar-make-mouse-event type) tab)
  (progn (funcall tabbar-select-tab-function (tabbar-make-mouse-event type) tab) (tabbar-display-update))
  (if tabbar-select-tab-function (progn (funcall tabbar-select-tab-function (tabbar-make-mouse-event type) tab) (tabbar-display-update)))
  tabbar-click-on-tab((#<buffer keybindings-tweak.el> . General) nil)
  (progn (setq selected (tabbar-selected-tab tabset)) (cond ((eq cycle (quote tabs)) (setq tab (tabbar-tab-next tabset selected backward)) (if tab nil (setq tabset (tabbar-tabs tabset) tab (car (if backward (last tabset) tabset))))) ((eq cycle (quote groups)) (setq tab (tabbar-tab-next ttabset selected backward)) (if tab nil (setq tabset (tabbar-tabs ttabset) tab (car (if backward (last tabset) tabset))))) (t (setq tab (tabbar-tab-next tabset selected backward)) (if tab nil (setq tab (tabbar-tab-next ttabset selected backward)) (if tab nil (setq tabset (tabbar-tabs ttabset) tab (car (if backward ... tabset)))) (setq tabset (tabbar-tabs (tabbar-tab-tabset tab)) tab (car (if backward (last tabset) tabset)))))) (tabbar-click-on-tab tab type))
  (if tabset (progn (setq selected (tabbar-selected-tab tabset)) (cond ((eq cycle (quote tabs)) (setq tab (tabbar-tab-next tabset selected backward)) (if tab nil (setq tabset (tabbar-tabs tabset) tab (car (if backward ... tabset))))) ((eq cycle (quote groups)) (setq tab (tabbar-tab-next ttabset selected backward)) (if tab nil (setq tabset (tabbar-tabs ttabset) tab (car (if backward ... tabset))))) (t (setq tab (tabbar-tab-next tabset selected backward)) (if tab nil (setq tab (tabbar-tab-next ttabset selected backward)) (if tab nil (setq tabset (tabbar-tabs ttabset) tab (car ...))) (setq tabset (tabbar-tabs (tabbar-tab-tabset tab)) tab (car (if backward ... tabset)))))) (tabbar-click-on-tab tab type)))
  (let* ((tabset (tabbar-current-tabset t)) (ttabset (tabbar-get-tabsets-tabset)) (cycle (if (and (eq tabbar-cycle-scope (quote groups)) (not (cdr (tabbar-tabs ttabset)))) (quote tabs) tabbar-cycle-scope)) selected tab) (if tabset (progn (setq selected (tabbar-selected-tab tabset)) (cond ((eq cycle (quote tabs)) (setq tab (tabbar-tab-next tabset selected backward)) (if tab nil (setq tabset (tabbar-tabs tabset) tab (car ...)))) ((eq cycle (quote groups)) (setq tab (tabbar-tab-next ttabset selected backward)) (if tab nil (setq tabset (tabbar-tabs ttabset) tab (car ...)))) (t (setq tab (tabbar-tab-next tabset selected backward)) (if tab nil (setq tab (tabbar-tab-next ttabset selected backward)) (if tab nil (setq tabset ... tab ...)) (setq tabset (tabbar-tabs ...) tab (car ...))))) (tabbar-click-on-tab tab type))))
  tabbar-cycle(t)
  (let ((tabbar-cycle-scope (quote groups))) (tabbar-cycle t))
  tabbar-backward-group()
  call-interactively(tabbar-backward-group nil nil)
  command-execute(tabbar-backward-group)