setAttributKey() error

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I've got an error when I discard changes on a page. I get a error like this: Fatal error: Call to a member function setAttributeKey() on a non-object in [ROOT_DIR] \concrete\models\attribute\categories\collection.php on line 54

it's from a beta version 5.3.3b2.

After this error I cannot load the sitemap and the page which I discarded.

 
ryan replied on at Permalink Reply
ryan
there were a ton of changes to the attribute system in these releases. The latest 5.3.3 release candidate should have these resolved.

If you're not up for going that route - I would try running the search engine indexer in the maintenance section of the dashboard. The attributes are being cached in a flat-table format created by the search indexer.