Title: Errors when replacing main image
Last modified: August 20, 2016

---

# Errors when replacing main image

 *  Resolved [djhollingworth](https://wordpress.org/support/users/djhollingworth/)
 * (@djhollingworth)
 * [15 years ago](https://wordpress.org/support/topic/errors-when-replacing-main-image/)
 * The following happens with catablog 1.2.7 and 1.2.7.1
 * When I go to replace the main image (I’ve no sub-images) on a product in my catablog
   All I get is a host of PHP errors:
 *     ```
       Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlogItem.class.php on line 611
   
       Warning: imagecolorallocate(): supplied argument is not a valid Image resource in /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlogItem.class.php on line 612
   
       Warning: imagefilledrectangle(): supplied argument is not a valid Image resource in /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlogItem.class.php on line 613
   
       Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlogItem.class.php on line 662
   
       Warning: imagejpeg(): supplied argument is not a valid Image resource in /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlogItem.class.php on line 667
   
       Warning: imagedestroy(): supplied argument is not a valid Image resource in /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlogItem.class.php on line 669
   
       Warning: Cannot modify header information - headers already sent by (output started at /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlogItem.class.php:611) in /home/test.dbahost.ie/public_html/otpb.ie/wp-content/plugins/catablog/lib/CataBlog.class.php on line 737
       ```
   
 * The first error says invalid dimensions; but the image is only 400×400 pixels.
   It’s also in a jpeg (.jpg) format.
 * What’s the problem?
 * Regards
 * David

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [macguru2000](https://wordpress.org/support/users/macguru2000/)
 * (@macguru2000)
 * [15 years ago](https://wordpress.org/support/topic/errors-when-replacing-main-image/#post-2090793)
 * Can you please double check that your Thumbnail and LightBox sizes are set to
   positive integers in the Admin CataBlog Options Panel. Thanks.
 *  Thread Starter [djhollingworth](https://wordpress.org/support/users/djhollingworth/)
 * (@djhollingworth)
 * [15 years ago](https://wordpress.org/support/topic/errors-when-replacing-main-image/#post-2090911)
 * Hi Macguru2000
 * Thanks for your reply. That did indeed fix the issue. It seems the settings got
   lost when I upgraded and had to be re-entered.
 * Thanks for your assistance
 * Regards
 * David
 *  Plugin Author [macguru2000](https://wordpress.org/support/users/macguru2000/)
 * (@macguru2000)
 * [15 years ago](https://wordpress.org/support/topic/errors-when-replacing-main-image/#post-2090931)
 * Awesome David,
 * I am curious if you remembered what version you upgraded to and what version 
   you were upgrading from. Also it would be great if you could support me and CataBlog
   if you haven’t already by:
 * rating and confirming that CataBlog works with your version of WordPress at
    
   [http://wordpress.org/extend/plugins/catablog/](http://wordpress.org/extend/plugins/catablog/)
 * liking the Facebook page at
    [http://facebook.com/catablog](http://facebook.com/catablog)
 * donating to my pizza and beer funds at
    [http://catablog.illproductions.com/donate/](http://catablog.illproductions.com/donate/)
 * Cheers!

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Errors when replacing main image’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/catablog_f7f6f7.svg)
 * [CataBlog](https://wordpress.org/plugins/catablog/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/catablog/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/catablog/)
 * [Active Topics](https://wordpress.org/support/plugin/catablog/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/catablog/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/catablog/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [macguru2000](https://wordpress.org/support/users/macguru2000/)
 * Last activity: [15 years ago](https://wordpress.org/support/topic/errors-when-replacing-main-image/#post-2090931)
 * Status: resolved