Fatal error: Call to a member function query() on a non-object

Hi @Scott B:

Did you remember to include a global $wpdb; in your code, like so?

global $wpdb;
$excludeImages = array();
$excludeImages = $wpdb->query("SELECT meta_value 
                              FROM $wpdb->postmeta 
                              WHERE meta_key = '_wp_attached_file'");

array_push($excludeImages);

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