Posted 1 year ago #
Hi,
I'm working with wordpress (version 3.1.1).
When I'm going to load a picture it is showing that
"Fatal error: Call to undefined function get_post_thumbnail_id() in /home/mnsoftwa/public_html/wp-admin/includes/media.php on line ....."
Moreover, my post editor has not the Visual. I'm working with only code(html).
Please help me to fix these problems.
Faithful,
Friend.
Have you tried:
- deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).
- switching to the Twenty Ten theme to rule out any theme-specific problems.
- resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.
- re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress.
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