[O] Org now failing on HTML export

[Peter Davis]

I've been using org 9.0.7/GNU Emacs 25.1.1 on Mac OS X for a while, and 
successfully exporting HTML to copy and paste into my blog.
However, in the last day or so, this started failing. I'm unaware of having 
changed anything in my configuration.

The error is ...

Here's the entire file I'm using ...

+============
Does this work at all?
+============

Here's the debug traceback ...

+============
Debugger entered--Lisp error: (wrong-type-argument listp #("org test" 0 8 
(:parent (#1))))
  org-element-set-contents(#("org test" 0 8 (:parent (#0))))
  apply(org-element-set-contents #("org test" 0 8 (:parent (#0))) nil)
  #[257 
"\211\305\306\307#\310\311\211:\204\312\202\"address@hidden"\n)\"\210\313\314
        \211:address@hidden@address@hidden)#\210\315\211      
\n;address@hidden"*\211;address@hidden        address@hidden  address@hidden" 
[new old element property value replace-regexp-in-string "\n" " " mapc #[(blob) 
"\305  \211;\203\306\f\307\n$\202 address@hidden" [blob old value property 
element :parent org-add-props nil plist-put] 6] nil apply 
org-element-set-contents :parent get-text-property 0 plist-get org-add-props 
plist-put] 7 "\n\n(fn S)"](#("org test" 0 8 (:parent (#0))))
  #[257 
"\211\211:\204\211;address@hidden@\262
?\206\251\301\203-
\312\301\313\">\206\251\211\2049\314\310\242\"\202\251\211\315=\203]\314\310\242\211:address@hidden"\202\251\211\304>\203~\300!\211\203}\302\203v\317\320\"\210\202}\307\307\242B\240\210\210\306\321=\203\271
;address@hidden;address@hidden"address@hidden@A\211;address@hidden"address@hidden@address@hidden"\210\202G\310\242!\210\266
A\266\202\202\315\210\211\305>\206\251
\211:address@hidden>?\206\251\306\330=\203\216\324!\331=\206\251\314\310\242\211:address@hidden"\207"
 [#[257 
"\211\305\306\307#\310\311\211:\204\312\202\"address@hidden"\n)\"\210\313\314
      \211:address@hidden@address@hidden)#\210\315\211      
\n;address@hidden"*\211;address@hidden        address@hidden  address@hidden" 
[new old element property value replace-regexp-in-string "\n" " " mapc #[(blob) 
"\305  \211;\203\306\f\307\n$\202 address@hidden" [blob old value property 
element :parent org-add-props nil plist-put] 6] nil apply 
org-element-set-contents :parent get-text-property 0 plist-get org-add-props 
plist-put] 7 "\n\n(fn S)"] nil nil nil (plain-text) nil objects (nil) (#0) 
plain-text plist-get :ignore-list mapc org-data nil throw :--map-first-match 
objects get-text-property 0 org-element-class element reverse greater-elements 
elements object org-element-secondary-value-alist 
org-element--parsed-properties-alist org-element-dual-keywords 
org-element-multiple-keywords org-element-greater-elements] 11 "\n\n(fn 
--DATA)"](#("org test" 0 8 (:parent (#0))))
  mapc(#[257 
"\211\211:\204\211;address@hidden@\262
?\206\251\301\203-
\312\301\313\">\206\251\211\2049\314\310\242\"\202\251\211\315=\203]\314\310\242\211:address@hidden"\202\251\211\304>\203~\300!\211\203}\302\203v\317\320\"\210\202}\307\307\242B\240\210\210\306\321=\203\271
;address@hidden;address@hidden"address@hidden@A\211;address@hidden"address@hidden@address@hidden"\210\202G\310\242!\210\266
A\266\202\202\315\210\211\305>\206\251
\211:address@hidden>?\206\251\306\330=\203\216\324!\331=\206\251\314\310\242\211:address@hidden"\207"
 [#[257 
"\211\305\306\307#\310\311\211:\204\312\202\"address@hidden"\n)\"\210\313\314
 \211:address@hidden@address@hidden)#\210\315\211      
\n;address@hidden"*\211;address@hidden        address@hidden  address@hidden" 
[new old element property value replace-regexp-in-string "\n" " " mapc #[(blob) 
"\305  \211;\203\306\f\307\n$\202 address@hidden" [blob old value property 
element :parent org-add-props nil plist-put] 6] nil apply 
org-element-set-contents :parent get-text-property 0 plist-get org-add-props 
plist-put] 7 "\n\n(fn S)"] nil nil nil (plain-text) nil objects (nil) (#0) 
plain-text plist-get :ignore-list mapc org-data nil throw :--map-first-match 
objects get-text-property 0 org-element-class element reverse greater-elements 
elements object org-element-secondary-value-alist 
org-element--parsed-properties-alist org-element-dual-keywords 
org-element-multiple-keywords org-element-greater-elements] 11 "\n\n(fn 
--DATA)"] (#("org test" 0 8 (:parent #0))))
  #[257 
"\211\211:\204\211;address@hidden@\262
?\206\251\301\203-
\312\301\313\">\206\251\211\2049\314\310\242\"\202\251\211\315=\203]\314\310\242\211:address@hidden"\202\251\211\304>\203~\300!\211\203}\302\203v\317\320\"\210\202}\307\307\242B\240\210\210\306\321=\203\271
;address@hidden;address@hidden"address@hidden@A\211;address@hidden"address@hidden@address@hidden"\210\202G\310\242!\210\266
A\266\202\202\315\210\211\305>\206\251
\211:address@hidden>?\206\251\306\330=\203\216\324!\331=\206\251\314\310\242\211:address@hidden"\207"
 [#[257 
"\211\305\306\307#\310\311\211:\204\312\202\"address@hidden"\n)\"\210\313\314
      \211:address@hidden@address@hidden)#\210\315\211      
\n;address@hidden"*\211;address@hidden        address@hidden  address@hidden" 
[new old element property value replace-regexp-in-string "\n" " " mapc #[(blob) 
"\305  \211;\203\306\f\307\n$\202 address@hidden" [blob old value property 
element :parent org-add-props nil plist-put] 6] nil apply 
org-element-set-contents :parent get-text-property 0 plist-get org-add-props 
plist-put] 7 "\n\n(fn S)"] nil nil nil (plain-text) nil objects (nil) (#0) 
plain-text plist-get :ignore-list mapc org-data nil throw :--map-first-match 
objects get-text-property 0 org-element-class element reverse greater-elements 
elements object org-element-secondary-value-alist 
org-element--parsed-properties-alist org-element-dual-keywords 
org-element-multiple-keywords org-element-greater-elements] 11 "\n\n(fn 
--DATA)"]((#("org test" 0 8 (:parent #0))))
  org-element-map((#("org test" 0 8 (:parent #0))) plain-text #[257 
"\211\305\306\307#\310\311\211:\204\312\202\"address@hidden"\n)\"\210\313\314
    \211:address@hidden@address@hidden)#\210\315\211      
\n;address@hidden"*\211;address@hidden        address@hidden  address@hidden" 
[new old element property value replace-regexp-in-string "\n" " " mapc #[(blob) 
"\305  \211;\203\306\f\307\n$\202 address@hidden" [blob old value property 
element :parent org-add-props nil plist-put] 6] nil apply 
org-element-set-contents :parent get-text-property 0 plist-get org-add-props 
plist-put] 7 "\n\n(fn S)"])
  org-export--get-inbuffer-options([cl-struct-org-export-backend html nil 
((bold . org-html-bold) (center-block . org-html-center-block) (clock . 
org-html-clock) (code . org-html-code) (drawer . org-html-drawer) 
(dynamic-block . org-html-dynamic-block) (entity . org-html-entity) 
(example-block . org-html-example-block) (export-block . org-html-export-block) 
(export-snippet . org-html-export-snippet) (fixed-width . org-html-fixed-width) 
(footnote-definition . org-html-footnote-definition) (footnote-reference . 
org-html-footnote-reference) (headline . org-html-headline) (horizontal-rule . 
org-html-horizontal-rule) (inline-src-block . org-html-inline-src-block) 
(inlinetask . org-html-inlinetask) (inner-template . org-html-inner-template) 
(italic . org-html-italic) (item . org-html-item) (keyword . org-html-keyword) 
(latex-environment . org-html-latex-environment) (latex-fragment . 
org-html-latex-fragment) (line-break . org-html-line-break) (link . 
org-html-link) (node-property . org-html-node-property) (paragraph . 
org-html-paragraph) (plain-list . org-html-plain-list) (plain-text . 
org-html-plain-text) (planning . org-html-planning) (property-drawer . 
org-html-property-drawer) (quote-block . org-html-quote-block) (radio-target . 
org-html-radio-target) (section . org-html-section) (special-block . 
org-html-special-block) (src-block . org-html-src-block) (statistics-cookie . 
org-html-statistics-cookie) (strike-through . org-html-strike-through) 
(subscript . org-html-subscript) (superscript . org-html-superscript) (table . 
org-html-table) (table-cell . org-html-table-cell) (table-row . 
org-html-table-row) (target . org-html-target) (template . org-html-template) 
(timestamp . org-html-timestamp) (underline . org-html-underline) (verbatim . 
org-html-verbatim) (verse-block . org-html-verse-block)) ((:html-doctype 
"HTML_DOCTYPE" nil org-html-doctype) (:html-container "HTML_CONTAINER" nil 
org-html-container-element) (:description "DESCRIPTION" nil nil newline) 
(:keywords "KEYWORDS" nil nil space) (:html-html5-fancy nil "html5-fancy" 
org-html-html5-fancy) (:html-link-use-abs-url nil "html-link-use-abs-url" 
org-html-link-use-abs-url) (:html-link-home "HTML_LINK_HOME" nil 
org-html-link-home) (:html-link-up "HTML_LINK_UP" nil org-html-link-up) 
(:html-mathjax "HTML_MATHJAX" nil "" space) (:html-postamble nil 
"html-postamble" org-html-postamble) (:html-preamble nil "html-preamble" 
org-html-preamble) (:html-head "HTML_HEAD" nil org-html-head newline) 
(:html-head-extra "HTML_HEAD_EXTRA" nil org-html-head-extra newline) (:subtitle 
"SUBTITLE" nil nil parse) (:html-head-include-default-style nil "html-style" 
org-html-head-include-default-style) (:html-head-include-scripts nil 
"html-scripts" org-html-head-include-scripts) 
(:html-allow-name-attribute-in-anchors nil nil 
org-html-allow-name-attribute-in-anchors) (:html-divs nil nil org-html-divs) 
(:html-checkbox-type nil nil org-html-checkbox-type) (:html-extension nil nil 
org-html-extension) (:html-footnote-format nil nil org-html-footnote-format) 
(:html-footnote-separator nil nil org-html-footnote-separator) 
(:html-footnotes-section nil nil org-html-footnotes-section) 
(:html-format-drawer-function nil nil org-html-format-drawer-function) 
(:html-format-headline-function nil nil org-html-format-headline-function) 
(:html-format-inlinetask-function nil nil org-html-format-inlinetask-function) 
(:html-home/up-format nil nil org-html-home/up-format) (:html-indent nil nil 
org-html-indent) (:html-infojs-options nil nil org-html-infojs-options) 
(:html-infojs-template nil nil org-html-infojs-template) 
(:html-inline-image-rules nil nil org-html-inline-image-rules) 
(:html-link-org-files-as-html nil nil org-html-link-org-files-as-html) 
(:html-mathjax-options nil nil org-html-mathjax-options) 
(:html-mathjax-template nil nil org-html-mathjax-template) 
(:html-metadata-timestamp-format nil nil org-html-metadata-timestamp-format) 
(:html-postamble-format nil nil org-html-postamble-format) 
(:html-preamble-format nil nil org-html-preamble-format) 
(:html-table-align-individual-fields nil nil 
org-html-table-align-individual-fields) (:html-table-caption-above nil nil 
org-html-table-caption-above) (:html-table-data-tags nil nil 
org-html-table-data-tags) (:html-table-header-tags nil nil 
org-html-table-header-tags) (:html-table-use-header-tags-for-first-column nil 
nil org-html-table-use-header-tags-for-first-column) (:html-tag-class-prefix 
nil nil org-html-tag-class-prefix) (:html-text-markup-alist nil nil 
org-html-text-markup-alist) (:html-todo-kwd-class-prefix nil nil 
org-html-todo-kwd-class-prefix) (:html-toplevel-hlevel nil nil 
org-html-toplevel-hlevel) (:html-use-infojs nil nil org-html-use-infojs) 
(:html-validation-link nil nil org-html-validation-link) (:html-viewport nil 
nil org-html-viewport) (:html-inline-images nil nil org-html-inline-images) 
...) ((:filter-options . org-html-infojs-install-script) (:filter-final-output 
. org-html-final-function)) nil (104 "Export to HTML" ((72 "As HTML buffer" 
org-html-export-as-html) (104 "As HTML file" org-html-export-to-html) (111 "As 
HTML file and open" (lambda (a s v b) (if a (org-html-export-to-html t s v b) 
(org-open-file (org-html-export-to-html nil s v b)))))))])
  org-export-get-environment([cl-struct-org-export-backend html nil ((bold . 
org-html-bold) (center-block . org-html-center-block) (clock . org-html-clock) 
(code . org-html-code) (drawer . org-html-drawer) (dynamic-block . 
org-html-dynamic-block) (entity . org-html-entity) (example-block . 
org-html-example-block) (export-block . org-html-export-block) (export-snippet 
. org-html-export-snippet) (fixed-width . org-html-fixed-width) 
(footnote-definition . org-html-footnote-definition) (footnote-reference . 
org-html-footnote-reference) (headline . org-html-headline) (horizontal-rule . 
org-html-horizontal-rule) (inline-src-block . org-html-inline-src-block) 
(inlinetask . org-html-inlinetask) (inner-template . org-html-inner-template) 
(italic . org-html-italic) (item . org-html-item) (keyword . org-html-keyword) 
(latex-environment . org-html-latex-environment) (latex-fragment . 
org-html-latex-fragment) (line-break . org-html-line-break) (link . 
org-html-link) (node-property . org-html-node-property) (paragraph . 
org-html-paragraph) (plain-list . org-html-plain-list) (plain-text . 
org-html-plain-text) (planning . org-html-planning) (property-drawer . 
org-html-property-drawer) (quote-block . org-html-quote-block) (radio-target . 
org-html-radio-target) (section . org-html-section) (special-block . 
org-html-special-block) (src-block . org-html-src-block) (statistics-cookie . 
org-html-statistics-cookie) (strike-through . org-html-strike-through) 
(subscript . org-html-subscript) (superscript . org-html-superscript) (table . 
org-html-table) (table-cell . org-html-table-cell) (table-row . 
org-html-table-row) (target . org-html-target) (template . org-html-template) 
(timestamp . org-html-timestamp) (underline . org-html-underline) (verbatim . 
org-html-verbatim) (verse-block . org-html-verse-block)) ((:html-doctype 
"HTML_DOCTYPE" nil org-html-doctype) (:html-container "HTML_CONTAINER" nil 
org-html-container-element) (:description "DESCRIPTION" nil nil newline) 
(:keywords "KEYWORDS" nil nil space) (:html-html5-fancy nil "html5-fancy" 
org-html-html5-fancy) (:html-link-use-abs-url nil "html-link-use-abs-url" 
org-html-link-use-abs-url) (:html-link-home "HTML_LINK_HOME" nil 
org-html-link-home) (:html-link-up "HTML_LINK_UP" nil org-html-link-up) 
(:html-mathjax "HTML_MATHJAX" nil "" space) (:html-postamble nil 
"html-postamble" org-html-postamble) (:html-preamble nil "html-preamble" 
org-html-preamble) (:html-head "HTML_HEAD" nil org-html-head newline) 
(:html-head-extra "HTML_HEAD_EXTRA" nil org-html-head-extra newline) (:subtitle 
"SUBTITLE" nil nil parse) (:html-head-include-default-style nil "html-style" 
org-html-head-include-default-style) (:html-head-include-scripts nil 
"html-scripts" org-html-head-include-scripts) 
(:html-allow-name-attribute-in-anchors nil nil 
org-html-allow-name-attribute-in-anchors) (:html-divs nil nil org-html-divs) 
(:html-checkbox-type nil nil org-html-checkbox-type) (:html-extension nil nil 
org-html-extension) (:html-footnote-format nil nil org-html-footnote-format) 
(:html-footnote-separator nil nil org-html-footnote-separator) 
(:html-footnotes-section nil nil org-html-footnotes-section) 
(:html-format-drawer-function nil nil org-html-format-drawer-function) 
(:html-format-headline-function nil nil org-html-format-headline-function) 
(:html-format-inlinetask-function nil nil org-html-format-inlinetask-function) 
(:html-home/up-format nil nil org-html-home/up-format) (:html-indent nil nil 
org-html-indent) (:html-infojs-options nil nil org-html-infojs-options) 
(:html-infojs-template nil nil org-html-infojs-template) 
(:html-inline-image-rules nil nil org-html-inline-image-rules) 
(:html-link-org-files-as-html nil nil org-html-link-org-files-as-html) 
(:html-mathjax-options nil nil org-html-mathjax-options) 
(:html-mathjax-template nil nil org-html-mathjax-template) 
(:html-metadata-timestamp-format nil nil org-html-metadata-timestamp-format) 
(:html-postamble-format nil nil org-html-postamble-format) 
(:html-preamble-format nil nil org-html-preamble-format) 
(:html-table-align-individual-fields nil nil 
org-html-table-align-individual-fields) (:html-table-caption-above nil nil 
org-html-table-caption-above) (:html-table-data-tags nil nil 
org-html-table-data-tags) (:html-table-header-tags nil nil 
org-html-table-header-tags) (:html-table-use-header-tags-for-first-column nil 
nil org-html-table-use-header-tags-for-first-column) (:html-tag-class-prefix 
nil nil org-html-tag-class-prefix) (:html-text-markup-alist nil nil 
org-html-text-markup-alist) (:html-todo-kwd-class-prefix nil nil 
org-html-todo-kwd-class-prefix) (:html-toplevel-hlevel nil nil 
org-html-toplevel-hlevel) (:html-use-infojs nil nil org-html-use-infojs) 
(:html-validation-link nil nil org-html-validation-link) (:html-viewport nil 
nil org-html-viewport) (:html-inline-images nil nil org-html-inline-images) 
...) ((:filter-options . org-html-infojs-install-script) (:filter-final-output 
. org-html-final-function)) nil (104 "Export to HTML" ((72 "As HTML buffer" 
org-html-export-as-html) (104 "As HTML file" org-html-export-to-html) (111 "As 
HTML file and open" (lambda (a s v b) (if a (org-html-export-to-html t s v b) 
(org-open-file (org-html-export-to-html nil s v b)))))))] nil (:output-file 
"./org-test.html"))
  org-export-as(html nil nil nil (:output-file "./org-test.html"))
  org-export-to-file(html "./org-test.html" nil nil nil nil nil)
  org-html-export-to-html(nil nil nil nil)
  (org-open-file (org-html-export-to-html nil s v b))
  (if a (org-html-export-to-html t s v b) (org-open-file 
(org-html-export-to-html nil s v b)))
  (lambda (a s v b) (if a (org-html-export-to-html t s v b) (org-open-file 
(org-html-export-to-html nil s v b))))(nil nil nil nil)
  org-export-dispatch(nil)
  funcall-interactively(org-export-dispatch nil)
  call-interactively(org-export-dispatch nil nil)
  command-execute(org-export-dispatch)

+============