wpsnoop: fix Co-Authors Plus plugin conflicts, errors & issues

When the plugin Co-Authors Plus conflicts or throws a PHP error we hope wpsnoop can help you to fix the issue quickly.

Discover which shortcodes wp-options PHP functions database tables and files are created by Co-Authors Plus, plus learn which plugins and/or themes could be in conflict with Co-Authors Plus.

Troubleshooting theme and plugin conflicts is easier when you know what Co-Authors Plus leaves behind after uninstalling it from a WordPress installation, there is a list down below for your convenience.

Expert advice is recommended if you are not technically proficient with PHP, MySQL etc. View support options for Co-Authors Plus

Database Issues

ShortCode Issues

Function Issues

File System Issues

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What does Co-Authors Plus version 3.4.92 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for Co-Authors Plus to perform differently in your installation, previous versions before 3.4.92 may have created a different set of shortcodes, used different function names or could have created entirely different database tables to store settings and operate. This is not an exhaustive list but shows how version 3.4.92 of Co-Authors Plus behaves when installed and removed on a clean installation of WordPress.

We have not tested individual shortcodes, features or settings of this plugin but instead have concentrated on the potential for obvious errors and conflicts which can occur, if you need help with the plugin in your local installation you can get WordPress help and support for Co-Authors Plus by clicking here.

Our testing covered the free version of this plugin there may or may not be a paid version or premium version available for purchase that unlocks additional features and could behave in a slightly or very different manner.

Summary of WordPress plugin analysis: Co-Authors Plus

Plugin Slug: co-authors-plus Internal ID: 14279 Addon Type: Plugin Version: 3.4.92 Price: Free Source: WordPress.org Files: 47 (520.10kB) Short Codes: [ / ] 0 Database Tables: 0 Function Count: 23 Code Review: Search Provit

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Which new files does Co-Authors Plus add to WordPress?

This section will populate with a table showing an icon, size and filepath.

The plugin Co-Authors Plus added 47 new files when it was installed with WP-CLI in our WordPress test environment.

Type & Path	Size	Conflicts
wp-content/plugins/co-authors-plus/	520.10kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/co-authors-plus.php	68.38kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/css/	2.62kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/css/co-authors-plus.css	2.47kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/css/guest-authors.css	150.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/deprecated.php	142.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/js/	12.86kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/js/co-authors-plus.js	12.06kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/js/guest-authors.js	826.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/	194.52kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-de_DE.mo	11.27kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-de_DE.po	17.25kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-es_ES.mo	11.94kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-es_ES.po	18.08kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-fr_FR.mo	12.12kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-fr_FR.po	18.24kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-nl_NL.mo	11.38kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-nl_NL.po	16.72kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-ru_RU.mo	1.45kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-ru_RU.po	13.99kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-sv_SE.mo	11.83kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-sv_SE.po	17.97kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-uk.mo	3.70kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus-uk.po	15.13kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/languages/co-authors-plus.pot	13.44kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/lib/	55.12kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/lib/select2/	55.12kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/lib/select2/select2.css	17.27kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/lib/select2/select2.min.js	34.62kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/lib/select2/select2.png	613.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/lib/select2/select2x2.png	845.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/lib/select2/spinner.gif	1.81kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/	96.64kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/class-coauthors-guest-authors.php	56.10kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/class-coauthors-template-filters.php	1.47kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/class-coauthors-wp-list-table.php	8.75kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/class-wp-cli.php	29.44kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/integrations/	887.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/integrations/amp.php	767.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/integrations/amp/	120.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/php/integrations/amp/meta-author.php	120.00B	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/readme.txt	4.22kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/screenshot-1.png	20.10kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/screenshot-2.png	24.90kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/screenshot-3.png	14.85kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/template-tags.php	24.48kB	No known conflicts with other themes or plugins.
wp-content/plugins/co-authors-plus/upgrade.php	1.27kB	No known conflicts with other themes or plugins.

Which new shortcodes does Co-Authors Plus add to WordPress?

The plugin Co-Authors Plus did not add any shortcodes when it was installed with WP-CLI in our WordPress test environment.

Which new database tables are created by the WordPress plugin Co-Authors Plus?

Co-Authors Plus did not create any new database tables when it was installed. It is possible that the plugin creates new database tables after an initial setup or configuration or after some period of use.

Which new options are added to the wp-options table by Co-Authors Plus?

None. There may be settings which have been changed by installing the Co-Authors Plus plugin however we do not yet track those changes.

What new PHP functions does Co-Authors Plus declare when it is active?

Installing Co-Authors Plus added 23 new functions to Wordpress at run-time. These functions are internal and generally aren't meant to be used except by developpers who wish to interface with the plugin to enhance or alter its behavior.

Function	Conflicts	Common Errors
cap_add_amp_actions	1 conflict	Fatal error: Cannot redeclare cap_add_amp_actions()
cap_filter_comment_moderation_email_recipients	1 conflict	Fatal error: Cannot redeclare cap_filter_comment_moderation_email_recipients()
cap_get_coauthor_terms_for_post	1 conflict	Fatal error: Cannot redeclare cap_get_coauthor_terms_for_post()
cap_set_amp_author_meta_template	1 conflict	Fatal error: Cannot redeclare cap_set_amp_author_meta_template()
cap_update_amp_json_metadata	1 conflict	Fatal error: Cannot redeclare cap_update_amp_json_metadata()
coauthors	2 conflicts	Fatal error: Cannot redeclare coauthors()
coauthors__echo	2 conflicts	Fatal error: Cannot redeclare coauthors__echo()
coauthors_emails	1 conflict	Fatal error: Cannot redeclare coauthors_emails()
coauthors_firstnames	2 conflicts	Fatal error: Cannot redeclare coauthors_firstnames()
coauthors_get_avatar	1 conflict	Fatal error: Cannot redeclare coauthors_get_avatar()
coauthors_ids	2 conflicts	Fatal error: Cannot redeclare coauthors_ids()
coauthors_lastnames	2 conflicts	Fatal error: Cannot redeclare coauthors_lastnames()
coauthors_links	2 conflicts	Fatal error: Cannot redeclare coauthors_links()
coauthors_links_single	1 conflict	Fatal error: Cannot redeclare coauthors_links_single()
coauthors_nicknames	2 conflicts	Fatal error: Cannot redeclare coauthors_nicknames()
coauthors_posts_links	2 conflicts	Fatal error: Cannot redeclare coauthors_posts_links()
coauthors_posts_links_single	1 conflict	Fatal error: Cannot redeclare coauthors_posts_links_single()
coauthors_wp_list_authors	2 conflicts	Fatal error: Cannot redeclare coauthors_wp_list_authors()
get_coauthors	1 conflict	Fatal error: Cannot redeclare get_coauthors()
get_the_coauthor_meta	1 conflict	Fatal error: Cannot redeclare get_the_coauthor_meta()
the_coauthor_meta	1 conflict	Fatal error: Cannot redeclare the_coauthor_meta()
wp_notify_postauthor	18 conflicts	Fatal error: Cannot redeclare wp_notify_postauthor()
is_coauthor_for_post	0 conflicts	Fatal error: Cannot redeclare is_coauthor_for_post()

Using Co-Authors Plus from the command line with WP-CLI

The following commands are provided for convenience and should only be used if you understand how WP-CLI works. These commands refer to a single WordPress instance and may need to be modified if you are working with a Multisite installation.

How to install Co-Authors Plus from the command line with WP-CLI

Navigate to the root of your WordPress installation and type the following command:

wp plugin install co-authors-plus

How to activate Co-Authors Plus from the command line with WP-CLI

To immediately activate Co-Authors Plus after WP-CLI downloads the latest version you can use the following command:

wp plugin install co-authors-plus --activate

How to reinstall Co-Authors Plus from the command line with WP-CLI

To force a reinstallation of Co-Authors Plus which overwrites the current plugin without asking for confirmation you can use the following command:

wp plugin install co-authors-plus --force

How to update Co-Authors Plus to the latest version from the command line with WP-CLI

wp plugin update co-authors-plus

How to delete Co-Authors Plus from the command line with WP-CLI

wp plugin delete co-authors-plus

Where can you download earlier versions of Co-Authors Plus?

Whenever possible you should use the latest version of plugins and themes, however if you have recently updated and discovered that you need to install an earlier version you may be able to download other versions of Co-Authors Plus from the WordPress repository by visiting this link.

Please note that installing earlier versions of a theme or plugin is not generally a recommended course of action for most users and could re-introduce security, stability or other issues in Co-Authors Plus

About our testing enviroment

Tests were conducted using Apache 2.4.29, PHP 7.2 on Ubuntu 18.04, MySQL 5.7.33 and WordPress 5.9

It is very possible that different versions of PHP such as PHP 8.0, PHP 7.4, or PHP 7.3 could behave differently with Co-Authors Plus. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.