Hi

The current MELPA version (see version details below) seems to have
problems with
the exporter. I reinstalled several times from older configurations to
try and exlude local effects. I get the error with all exporters I tried

The file I am exporting is
https://github.com/dfeich/org-babel-examples/blob/master/latex/latex-example.org

Best regards
Derek

Backtrace (long lines cut for this mail):

################
Debugger entered--Lisp error: (wrong-type-argument listp #("Derek
Feichtinger" 0 17 (:parent (#1))))
  org-element-set-contents(#("Derek Feichtinger" 0 17 (:parent (#0)))) ...
  ...
  org-element-map((#("Derek Feichtinger" 0 17 (:parent #0))) plain-text ...
  org-export--get-inbuffer-options([cl-struct-org-export-backend latex nil
...
  org-export-get-environment([cl-struct-org-export-backend latex nil ...
  org-export-as(latex nil nil nil (:output-file "./latex-example.tex"))
  org-export-to-file(latex "./latex-example.tex" nil nil nil nil nil
#[(file) ...
  org-latex-export-to-pdf(nil nil nil nil)
  (org-open-file (org-latex-export-to-pdf nil s v b))
  (if a (org-latex-export-to-pdf t s v b) (org-open-file
(org-latex-export-to-pdf nil s v b)))
  (lambda (a s v b) (if a (org-latex-export-to-pdf t s v b) (org-open-file
(org-latex-export-to-pdf nil s v b))))(nil nil nil nil)
  org-export-dispatch(nil)
  call-interactively(org-export-dispatch nil nil)
  command-execute(org-export-dispatch)
#############


Configuration
#############

Emacs  : GNU Emacs 24.5.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.10.8)
 of 2015-05-04 on dflt1w
Package: Org-mode version 8.3.1 (8.3.1-elpaplus @
/home/dfeich/.emacs.d/elpa/org-plus-contrib-20150805/)

current state:
==============
(setq
 org-src-lang-modes '(("ipython" . python) ("ocaml" . tuareg) ("elisp" .
emacs-lisp)
     ("ditaa" . artist) ("asymptote" . asy) ("dot" . fundamental)
     ("sqlite" . sql) ("calc" . fundamental) ("C" . c) ("cpp" . c++)
     ("C++" . c++) ("screen" . shell-script) ("shell" . sh) ("bash" . sh))
 org-tab-first-hook '(org-hide-block-toggle-maybe
org-babel-hide-result-toggle-maybe
     org-babel-header-arg-expand)
 org-speed-command-hook '(org-speed-command-default-hook
org-babel-speed-command-hook)
 org-time-clocksum-format '(:hours "%d" :require-hours t :minutes ":%02d"
:require-minutes t)
 org-occur-hook '(org-first-headline-recenter)
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-html-format-drawer-function '(lambda (name contents) contents)
 org-log-done 'time
 org-latex-format-inlinetask-function
'org-latex-format-inlinetask-default-function
 org-confirm-shell-link-function 'yes-or-no-p
 org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
 org-latex-pdf-process '("pdflatex -shell-escape -interaction nonstopmode
-output-directory %o %f" "pdflatex -shell-escape -interaction nonstopmode
-output-directory %o %f" "pdflatex -shell-escape -interaction nonstopmode
-output-directory %o %f")
 org-file-apps '(("\\.pdf.gz\\'" . "evince %s") ("\\.pdf\\'" . "evince %s")
(auto-mode . emacs)
("\\.mm\\'" . default) ("\\.x?html?\\'" . default))
 org-agenda-custom-commands '(("n" "Agenda and all TODO's" ((agenda "")
(alltodo)))
     ("s" "Agenda and waiting tasks"
      ((agenda "" ((org-agenda-span 1) (org-agenda-show-log t)))
(todo "WAIT") (todo "WAITFM")
(todo "TODO"
((org-agenda-skip-function
  (quote
   (org-agenda-skip-entry-if (quote scheduled) (quote deadline))
   )
  )
 (org-agenda-overriding-header
  "unscheduled TODOs without a deadline:")
 )
)
)
      )
     ("h" . "my custom searches") ("hd" todo "DONE")
     ("ha" todo-tree "DONE") ("hw" "waiting tasks" todo "WAIT")
     ("hc" tags "CLOSED<=\"<-4w>\"") ("hm" tags-todo "+mbo")
     ("hu" "unscheduled and no deadline" todo "TODO"
      ((org-agenda-skip-function
(quote
 (org-agenda-skip-entry-if (quote scheduled) (quote deadline)))
)
(org-agenda-overriding-header
"unscheduled TODOs without a deadline:")
)
      )
     )
 org-latex-format-headline-function
'org-latex-format-headline-default-function
 org-capture-templates '(("t" "Todo" entry
 (file+headline (concat org-directory "tasks.org") "Captured Tasks")
 (concat "* TODO %?\n" "  :LOGBOOK:"
  "  - State \"TODO\"       from \"\"           %U\n  %i\n" "  :END:\n"
  "  %a")
 ("n" "Notes + Link" entry (file (concat org-directory "notes.org"))
  "* %?\nEntered on %U\n  %i\n  %a")
 )
("j" "Journal + Link" entry
 (file+datetree (concat org-directory "journal.org"))
 "* %?\nEntered on %U\n  %i\n  %a")
)
 org-agenda-include-diary t
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-latex-format-drawer-function '(lambda (name contents) contents)
 org-src-mode-hook '(org-src-babel-configure-edit-buffer
org-src-mode-configure-edit-buffer)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-latex-to-mathml-jar-file "~/.emacs.d/javalib/mathtoweb.jar"
 org-babel-pre-tangle-hook '(save-buffer)
 org-mode-hook '(my-org-hook-additions my-org-file-apps-additions
org-clock-load
#[nil "\300\301\302\303\304$\207"
  [org-add-hook change-major-mode-hook org-show-block-all append local] 5]
#[nil "\300\301\302\303\304$\207"
  [org-add-hook change-major-mode-hook org-babel-show-result-all append
local]
  5]
org-babel-result-hide-spec org-babel-hide-all-hashes org-eldoc-load)
 org-refile-targets '((nil :maxlevel . 9) (org-agenda-files :maxlevel . 9))
 org-outline-path-complete-in-steps nil
 org-latex-to-mathml-convert-command "java -jar %j -unicode -force -df %o
%I"
 org-archive-hook '(org-attach-archive-delete-maybe)
 org-use-speed-commands t
 org-ascii-format-drawer-function '(lambda (name contents width) contents)
 org-clock-persist 'history
 org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point
org-babel-execute-safely-maybe)
 org-refile-use-outline-path t
 org-directory "~/Dropbox/org/agenda/"
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers
 org-cycle-show-empty-lines org-optimize-window-after-visibility-change)
 org-plantuml-jar-path "~/.emacs.d/javalib/plantuml.jar"
 org-latex-create-formula-image-program 'imagemagick
 org-ditaa-eps-jar-path
"/home/dfeich/.emacs.d/elpa/contrib/scripts/DitaaEps.jar"
 org-latex-packages-alist '(("" "minted"))
 org-babel-tangle-lang-exts '(("D" . "d") ("C++" . "cpp") ("python" . "py")
     ("emacs-lisp" . "el") ("elisp" . "el"))
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-log-into-drawer t
 org-latex-minted-langs '((ipython "python") (emacs-lisp "common-lisp") (cc
"c++")
 (cperl "perl") (shell-script "bash") (caml "ocaml"))
 org-ditaa-jar-path "~/.emacs.d/javalib/ditaa.jar"
 org-html-format-headline-function
'org-html-format-headline-default-function
 org-completion-use-ido t
 org-babel-load-languages '((plantuml . t) (dot . t) (ditaa . t)
(emacs-lisp . t) (python . t)
   (ipython . t) (sqlite . t) (sh . t) (calc . t) (gnuplot . t) (C . t))
 org-html-format-inlinetask-function
'org-html-format-inlinetask-default-function
 org-agenda-files '("~/Dropbox/org/agenda/tasks.org" "~/Dropbox/org/agenda/
private.org"
   "~/Dropbox/org/agenda/tasks-n900.org")
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )