On Tue, Sep 7, 2010 at 4:46 PM, rey1981 <supporto...@hotmail.it>
>
> KeyError('language',) (Also, the following error occurred while attempting
> to render the standard error message, please see the event log for full
> details: language)Potrebbe essere questo: http://dev.plone.org/plone/ticket/10676 che è stato marcato "invalid" poiché Your site must be using a theme with a customized main_template that has not been updated to work in Plone 4 yet. 'language' and various other variables that were available globally in Plone 3 must now be explicitly defined (there is a page in the Plone upgrade documentation with details). Probably your best bet is to start fresh with the main_template from Plone 4, and reapply the changes you need for your custom theme. Hai qualche main_template in custom? Silvio
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