I get this notice when debugging my new site.

Does anybody know what this means? It doesn't break the site but it's just a warning when I switch debug mode on and I would like to solve this issue.

This Notice only shows up when the comments option is available. When you a single post page and the comments have been closed through the dashboard this notice doesn't show up.

This is the 'error' I get:

NOTICE: wp-includes/comment-template.php:26 - Trying to get property of non-object

require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/XXX/my-templates/template-home.php'), get_footer, locate_template, load_template, require_once('/themes/XXX/footer.php'), wp_footer, do_action('wp_footer'), call_user_func_array, wp_admin_bar_render, do_action_ref_array, call_user_func_array, wp_admin_bar_my_account_item, get_avatar, apply_filters('get_avatar'), call_user_func_array, XXX_remove_dimensions_avatars, get_comment_author

  • I'd guess your theme (in "footer.php"?) is calling get_comment_author() without checking for have_comments() first... – bonger Dec 20 '14 at 17:51
  • Syntax errors are off-topic on this site. <a href="wordpress.stackexchange.com/help/on-topic">See the help center</a>. – cybmeta Dec 20 '14 at 18:58
  • 1
    Thank you @bonger - you're very helpful! I had used the get_comment_author() function to place the name of the author on the img alt attribute. – Jack Ottermans Dec 20 '14 at 21:06
  • @bonger as an answer please :) – Rarst Dec 21 '14 at 12:07

Per comments, you need to check for have_comments() first, before using any of the comment-template functions such as get_comment_author(), otherwise they try to call methods on a null comment object, producing PHP warnings.

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