[Mediawiki-l] ParserOut Error

[john Moorhouse]

I'm attempting to get the Stableversions extension working with version 
1.9.1, I'm getting the following error when I try to change the state of 
the page either to stable from draft or from stable to draft:-

Catchable fatal error: Object of class ParserOutput could not be 
converted to string in 
/home/johnmoor/public_html/wiki_2_policy/includes/Parser.php on line 2779

Help ?

Ta

John
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