When i tried to create a page using Site actions in the site i get the following error
The site is not valid. The 'Pages' document library is missing
It was given that go to site features and activate "Office SharePoint Server Publishing Feature"
but it was already in actived!!!! so what to do now
I have managed to fix this. When you upgrade, the root site needs the site publishing feature deacitvating and reactivating.
Try running this:
stsadm -o deactivatefeature -name PublishingWeb -url https://UrlOfPublishingSite -force
stsadm -o activatefeature -name PublishingWeb -url https://UrlOfPublishingSiteiisreset