Debugger entered--Lisp error: (error "File \"/tmp/babel-falBv7/latex-iLJhcd.pdf\" wasn’t p...")
  signal(error ("File \"/tmp/babel-falBv7/latex-iLJhcd.pdf\" wasn’t p..."))
  error("File \"/tmp/babel-falBv7/latex-iLJhcd.pdf\" wasn't p...")
  org-compile-file("/tmp/babel-falBv7/latex-iLJhcd.tex" ("pdflatex %f" "bibtex %b" "pdflatex %f" "pdflatex %f") "pdf" "See \"*Org PDF LaTeX Output*\" for details" #<buffer *Org PDF LaTeX Output*> ((66 . "bibtex") (76 . "pdflatex")))
  org-latex-compile("/tmp/babel-falBv7/latex-iLJhcd.tex")
  org-babel-latex-tex-to-pdf("/tmp/babel-falBv7/latex-iLJhcd.tex")
  org-babel-execute:latex("\\begin{tikzpicture}[node distance=2cm, shorten >=2..." ((:colname-names) (:rowname-names) (:result-params "replace" "raw") (:result-type . value) (:results . "replace raw") (:exports . "results") (:session . "none") (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no") (:fit . "yes") (:imagemagick . "yes") (:iminoptions . "-density 600") (:imoutoptions . "-geometry 400") (:file . "blackboxmodel.png")))
  org-babel-execute-src-block(nil ("latex" "\\begin{tikzpicture}[node distance=2cm, shorten >=2..." ((:colname-names) (:rowname-names) (:result-params "raw" "replace") (:result-type . value) (:results . "raw replace") (:exports . "results") (:file . "blackboxmodel.png") (:imoutoptions . "-geometry 400") (:iminoptions . "-density 600") (:imagemagick . "yes") (:fit . "yes") (:tangle . "no") (:hlines . "no") (:noweb . "no") (:cache . "no") (:session . "none")) "" nil 265 "(ref:%s)"))
  org-ctrl-c-ctrl-c(nil)
  funcall-interactively(org-ctrl-c-ctrl-c nil)
  call-interactively(org-ctrl-c-ctrl-c nil nil)
  command-execute(org-ctrl-c-ctrl-c)