Debugger entered--Lisp error: (void-variable state)
  ediff-vc-latest-version("c:\\Users\\AichnerAd\\.timelog.gpg")
  ediff-vc-internal("" "" nil)
  erevision(nil)
  call-interactively(erevision)
  command-execute(erevision t)
  execute-extended-command(nil)
  call-interactively(execute-extended-command)