Title: [Plugin: Facebook] Fatal Error Last modified: August 20, 2016 --- # [Plugin: Facebook] Fatal Error * Resolved [marshallwayne](https://wordpress.org/support/users/marshallwayne/) * (@marshallwayne) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/) * The Facebook plugin installed just fine. * The comments, and “Like” box work. * However, when I try to publish, and have it posted to my Facebook page, and fan page, it gives me this: * Fatal error: Call to undefined function get_post_thumbnail_id() in /home/stopmar/ public_html/wp-content/plugins/facebook/fb-social-publisher.php on line 193 * I hope someone can help. * Thank you. * [http://wordpress.org/extend/plugins/facebook/](http://wordpress.org/extend/plugins/facebook/) Viewing 10 replies - 1 through 10 (of 10 total) * Plugin Contributor [Samuel Wood (Otto)](https://wordpress.org/support/users/otto42/) * (@otto42) * WordPress.org Admin * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809351) * The get_post_thumbnail_id() function has been in WordPress since version 2.9. * The plugin requires WordPress version 3.1.1 or higher. Upgrade. * If you have upgraded, then make sure that you have all the correct core WordPress files and aren’t running some kind of bad upgrade in some way. * Thread Starter [marshallwayne](https://wordpress.org/support/users/marshallwayne/) * (@marshallwayne) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809362) * Hmmmm…. * I have the latest upgrade. * I completely deleted my blog last night, and reinstalled within my Host Gator cPanel, so I could start fresh. * So I don’t have any conflicting plugins at the moment either, and the only posts are posts to test this plugin. * I’m not sure what to do. * Thread Starter [marshallwayne](https://wordpress.org/support/users/marshallwayne/) * (@marshallwayne) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809372) * I think it may be that when I try to submit my publish actions for review in the Facebook Developers dashboard, I get this: * You must publish at least one action to your Timeline using this action type. Review the documentation. * I’m not sure how to publish an action, unless it means I can just manually enter my link to my page, or fan page. * [speechpoet](https://wordpress.org/support/users/speechpoet/) * (@speechpoet) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809471) * Adding this to functions.php – add_theme_support( ‘post-thumbnails’ ); – stopped the undefined function error. But I can’t get “Publish to author’s Timeline” to stay checked, and the posts don’t show up in the timeline. * Thread Starter [marshallwayne](https://wordpress.org/support/users/marshallwayne/) * (@marshallwayne) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809475) * Thank you for that tip. I added that section to functions.php, but just like you, I’m not seeing the posts show up in the timeline. * Thread Starter [marshallwayne](https://wordpress.org/support/users/marshallwayne/) * (@marshallwayne) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809476) * It’s posts to a friends wall now if I tag the friend, so that’s a step. * [seravi](https://wordpress.org/support/users/seravi/) * (@seravi) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809511) * Hm…I’m getting the same undefined function error, and also recently upgraded. How does one go about doing this particular advice: * “make sure that you have all the correct core WordPress files and aren’t running some kind of bad upgrade in some way. ” * [Jason A](https://wordpress.org/support/users/jasonlanderson/) * (@jasonlanderson) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809521) * I noticed this was put as resolved, but I see the post from 2 hours ago seems to be have an issue. I just enabled this plugin as well now and get this error when I attempt to publish a post. * No post shows on the timeline and I get this screen right after publishing. * Fatal error: Call to undefined function get_post_thumbnail_id() in /home/gstyle/ public_html/wp-content/plugins/facebook/fb-social-publisher.php on line 193 * Can someone let me know what the resolution of this is. I have the latest WordPress version, and all the core files are fine. * Thanks * Thread Starter [marshallwayne](https://wordpress.org/support/users/marshallwayne/) * (@marshallwayne) * [14 years ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809535) * I simply did what speechpoet laid down, and that worked perfectly: * Adding this to functions.php – add_theme_support( ‘post-thumbnails’ ); – stopped the undefined function error. * …so, go to your Appearance tab, then to Editor. * You’ll then click on, “Theme Functions” which will be functions.php * Under, “// Theme specific functionality”, I added this: * add_theme_support( ‘post-thumbnails’ ); * [jmunchbach](https://wordpress.org/support/users/jmunchbach/) * (@jmunchbach) * [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809736) * I’m trying to correct the same problem (I think…) * Fatal error: Wrong parameters for Exception([string $exception [, long $code ]]) in /home/content/37/9099637/html/wp-content/plugins/facebook/includes/facebook- php-sdk/base_facebook.php on line 54 Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘[Plugin: Facebook] Fatal Error’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/facebook_526fac.svg) * [Facebook](https://wordpress.org/plugins/facebook/) * [Frequently Asked Questions](https://wordpress.org/plugins/facebook/#faq) * [Support Threads](https://wordpress.org/support/plugin/facebook/) * [Active Topics](https://wordpress.org/support/plugin/facebook/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/facebook/unresolved/) * [Reviews](https://wordpress.org/support/plugin/facebook/reviews/) ## Tags * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/) * 10 replies * 6 participants * Last reply from: [jmunchbach](https://wordpress.org/support/users/jmunchbach/) * Last activity: [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-facebook-fatal-error-1/#post-2809736) * Status: resolved