What exactly were you doing when you got the error message? Did you edit any php files or DB tables?
Looks something weird. Also see this.
If it is a new bug specific to WordPress, some others may also report it. But I have seen no such reports so far. All the sites having the above problems are NOT running on WordPress.
please paste the below code in the template php file where the error occurs:
<?php print_r($wp_query) ?>
then paste the result in pastebin and paste the link here
I can’t see anything in particular that is causing this issue?
Might be a plugin or your theme that is causing this, try reverting back to default twenty eleven theme and disable all plugins…
If the issue persists then i don’t have a clue what is wrong if not then you can be sure that the root cause is a plugin you deactivated or your theme…
Did you figure this out? Happened to me too and I updated several plugins this morning – saw somewhere else that it was the WP Popular Posts plugin, which I do have… so I deactivated it and the blog seems to be working fine now.
I’ve solve the problem, it caused by plugin WordPress Popular Posts. The latest version 2.3.0 got several bug, you may need to deactivate the delete the plugin then install the previous version 2.2.1: http://downloads.wp.xz.cn/plugin/wordpress-popular-posts.2.2.1.zip, please do not update the latest version until the developer of this plugin fix the problem. You can refer here: WordPress Popular Posts
Just deactivating and then reactivating it solved the problem for me
I just went through this, I updated popular posts this morning and the error message was just pointed out to me. I deactivated “popular posts” and it corrected itself.
