1

I am setting the header image in WordPress and when I click on the crop button, it shows me the following error:

There has been an error cropping your image.

enter image description here

2

There is too little information to be completely sure, but usually this error occurs when WordPress cannot find the graphic library which should be installed on your server. So you should check with your provider to see if Imagick and/or GD are installed.

You can also add this little snippet of code in your functions.php file to make sure WordPress looks for both (often it only looks for Imagick):

add_filter ('wp_image_editors', 'wpse303391_change_graphic_editor');
function wpse303391_change_graphic_editor ($array) {
    return array( 'WP_Image_Editor_GD', 'WP_Image_Editor_Imagick' );
    }

This snippet will look for GD first and then for Imagick. The latter gives better quality, but uses more memory, which can also lead to server errors.

  • Is there a list of these "extra" requirements anywhere? wordpress.org/about/requirements doesn't mention any PHP libraries that need to be installed. – aidanh010 Oct 18 '18 at 19:04
  • Wordpress assumes there is a complete PHP install on the server. It's not something "extra". – cjbj Oct 18 '18 at 20:53
2

I solved this install the next library

sudo apt-get install php5-gd -> for php5 sudo apt-get install php7.0-gd -> for php7 sudo apt-get install php7.2-gd -> for php7.2

  • Didn't even have to refresh the page after install. Thanks – Rexford Feb 7 at 18:48
  • On CentOS it's yum install php-gd, for the interested. – bviktor Mar 22 at 12:32

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