Debugger entered--Lisp error: (error "Capture abort: (wrong-type-argument char-or-string-p nil)")
  signal(error ("Capture abort: (wrong-type-argument char-or-string-p nil)"))
  error("Capture abort: %s" (wrong-type-argument char-or-string-p nil))
  byte-code("\301\302!\203\n^@\303\302!\210\300\204^H\"\207" [error get-buffer "*Capture*" kill-buffer "Capture abort: %s"] 3)