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Error rendering pathway page

This revision of the pathway probably contains invalid GPML code. If this happens to the most recent revision, try reverting the pathway using the pathway history displayed below or contact the site administrators (see WikiPathways:About) to resolve this problem.

Pathway history

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Compare	Revision	Action	Time	User	Comment
	109430	view	09:51, 17 March 2020	L Dupuis	Connected line
	109408	view	18:05, 16 March 2020	L Dupuis	Fixed interactions
	107236	view	14:33, 17 September 2019	MaintBot	ChEBI identifier normalization
	93711	view	12:08, 11 August 2017	DeSl	Added 3 IDs for previously not annotated nodes.
	93710	view	12:02, 11 August 2017	DeSl	Added more connectivity between nodes.
	93709	view	11:56, 11 August 2017	DeSl	Tried to connect all the nodes for this PW; lines were hidden under the nodes :(
	93706	view	11:37, 11 August 2017	DeSl	Added IDs for not annotated metabolite nodes, changed appearence of several nodes.
	93704	view	10:56, 11 August 2017	DeSl	Modified description
	79705	view	08:09, 6 April 2015	Egonw	Replaced a gene name with its Entrez Gene identifier.
	79704	view	08:06, 6 April 2015	Egonw	Converted more labels to metabolite DataNode's.
	77392	view	11:30, 5 September 2014	Egonw	Added a bunch of ChemSpider identifiers for metabolites with IUPAC names.
	77391	view	11:18, 5 September 2014	Egonw	Replace a bunch of Labels for metabolites with Metabolite DataNodes (without IDs).
	72184	view	07:32, 27 October 2013	Egonw	Converted a bunch of labels to Metabolite DataNodes, and cleaned up arrows.
	72141	view	09:59, 25 October 2013	Mkutmon	added annotation of EC numbers
	67800	view	19:42, 26 June 2013	Egonw	Connected some dots.
	67739	view	11:57, 26 June 2013	Ddigles	Ontology Term : 'urea cycle pathway' added !
	41771	view	02:42, 2 March 2011	MaintBot	Removed redundant pathway information and comments
	21003	view	11:30, 14 November 2008	MaintBot	[[Pathway:Rattus norvegicus:Urea cycle and metabolism of amino groups KEGG]] moved to [[Pathway:WP153]]: Moved to stable identifier
	8480	view	13:46, 7 January 2008	MaintBot	[[Pathway:Rat:Urea cycle and metabolism of amino groups KEGG]] moved to [[Pathway:Rattus norvegicus:Urea cycle and metabolism of amino groups KEGG]]: Renaming species
	7856	view	16:23, 18 December 2007	MaintBot	fixed category names
	7415	view	12:42, 4 November 2007	MaintBot	Added categories to GPML
	6608	view	22:20, 22 May 2007	L.M.Ferrante	gpml file for [[Rat:Urea_cycle_and_metabolism_of_amino_groups_KEGG]]

Error details

exception 'MWException' with message 'Invalid pvjson, so cannot savePvjsonCache.' in /var/www/wikipathways/wpi/extensions/Pathways/Pathway.php:1277
Stack trace:
#0 /var/www/wikipathways/wpi/extensions/Pathways/Pathway.php(584): Pathway->savePvjsonCache()
#1 /var/www/wikipathways/wpi/extensions/Pathways/PathwayPage.php(295): Pathway->getPvjson()
#2 /var/www/wikipathways/wpi/extensions/Pathways/PathwayPage.php(169): PathwayPage->Diagram()
#3 /var/www/wikipathways/wpi/extensions/Pathways/PathwayPage.php(24): PathwayPage->render()
#4 [internal function]: renderPathwayPage(Object(Parser), '<?xml version="...', Object(StripState))
#5 /var/www/wikipathways/includes/Hooks.php(125): call_user_func_array('renderPathwayPa...', Array)
#6 /var/www/wikipathways/includes/parser/Parser.php(318): wfRunHooks('ParserBeforeStr...', Array)
#7 /var/www/wikipathways/includes/Article.php(3406): Parser->parse('<?xml version="...', Object(Title), Object(ParserOptions), true, true, 8480)
#8 /var/www/wikipathways/includes/Article.php(875): Article->outputWikiText('<?xml version="...', false)
#9 /var/www/wikipathways/includes/Wiki.php(437): Article->view()
#10 /var/www/wikipathways/includes/Wiki.php(59): MediaWiki->performAction(Object(OutputPage), Object(Article), Object(Title), Object(User), Object(WebRequest))
#11 /var/www/wikipathways/index.php(93): MediaWiki->initialize(Object(Title), Object(Article), Object(OutputPage), Object(User), Object(WebRequest))
#12 {main}