wpsnoop: fix Nucleus theme conflicts, errors & issues

When the theme Nucleus 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 Nucleus, plus learn which plugins and/or themes could be in conflict with Nucleus.

Troubleshooting theme and plugin conflicts is easier when you know what Nucleus 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 Nucleus

Database Issues

ShortCode Issues

Function Issues

File System Issues

Get professional support for Nucleus here

When you need professional help with WordPress: get help here

What does Nucleus version 1.5.0 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for Nucleus to perform differently in your installation, previous versions before 1.5.0 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 1.5.0 of Nucleus behaves when installed and removed on a clean installation of WordPress.

We have not tested individual shortcodes, features or settings of this theme 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 Nucleus by clicking here.

Our testing covered the free version of this theme 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 theme analysis: Nucleus

Theme Slug: nucleus Internal ID: 115963 Addon Type: > Theme Version: 1.5.0 Price: Free Source: WordPress.org Files: 72 (0.95MB) Short Codes: [ / ] 0 Database Tables: 0 Function Count: 37

Do you need help with Nucleus? Get professional theme support here in no time at all

Which new files does Nucleus add to WordPress?

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

The theme Nucleus added 72 new files when it was installed with WP-CLI in our WordPress test environment.

Type & Path	Size	Conflicts
wp-content/themes/nucleus/	0.95MB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/404.php	877.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/archive.php	1.93kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/comments.php	1.93kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/css/	16.68kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/css/blocks.css	1.95kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/css/editor-blocks.css	698.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/css/editor-style.css	7.00kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/css/ie.css	789.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/css/ie7.css	2.67kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/css/ie8.css	3.60kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/footer.php	2.08kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/functions.php	19.19kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/	189.40kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/COPYING.txt	1.39kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/genericons.css	27.60kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/Genericons.eot	21.85kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/Genericons.svg	75.18kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/Genericons.ttf	21.67kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/Genericons.woff	13.66kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/LICENSE.txt	17.67kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/genericons/README.md	10.38kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/header.php	3.80kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/image.php	3.45kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/img/	285.83kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/img/default-3x2.png	3.83kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/img/default-512.png	4.43kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/img/default-60.png	2.80kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/img/galussothemes-logo.png	2.84kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/img/nucleus-pro-features.png	271.93kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/inc/	41.82kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/inc/back-compat.php	2.14kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/inc/custom-header.php	4.47kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/inc/nucleus-help.php	8.15kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/inc/nucleus-lite-customization.php	4.54kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/inc/nucleus-lite-customizer.php	15.11kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/inc/template-tags.php	7.40kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/index.php	1.75kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/	23.79kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/color-scheme-control.js	2.97kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/customize-preview.js	1.44kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/functions.js	6.78kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/html5.js	10.09kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/keyboard-image-navigation.js	540.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/nucleus-general-scripts.js	976.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/js/skip-link-focus-fix.js	1.03kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/languages/	59.21kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/languages/es_ES.mo	15.81kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/languages/es_ES.po	27.35kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/languages/nucleus.mo	582.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/languages/nucleus.po	15.48kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/page-templates/	457.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/page-templates/full-width.php	457.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/page.php	960.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/readme.txt	5.46kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/rtl.css	13.35kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/screenshot.png	203.01kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/search.php	1.42kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/searchform.php	746.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/sidebar-content-bottom.php	761.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/sidebar.php	344.00B	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/single.php	1.64kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/style.css	85.39kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/	11.72kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/biography.php	1.08kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/content-none.php	1.03kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/content-page.php	1.16kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/content-search.php	1.23kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/content-single.php	1.92kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/content.php	2.31kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/related-posts.php	1.05kB	No known conflicts with other themes or plugins.
wp-content/themes/nucleus/template-parts/top-bar.php	1.93kB	No known conflicts with other themes or plugins.

Which new shortcodes does Nucleus add to WordPress?

The theme Nucleus 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 theme Nucleus?

Nucleus did not create any new database tables when it was installed. It is possible that the theme 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 Nucleus?

When Nucleus was activated and loaded for the first time it created 4 new options in the wp_options table. Any known conflicts will be shown in red.

Option Name		Known Conflicts
current_theme		Potential conflict with 8753 plugins or themes
Nucleus
theme_mods_twentytwentytwo		Potential conflict with 8767 plugins or themes
a:1:{s:16:"sidebars_widgets";a:2:{s:4:"time";i:1645541655;s:4:"data";a:3:{s:19:"wp_inactive_widgets";a:0:{}s:9:"sidebar-1";a:3:{i:0;s:7:"block-2";i:1;s:7:"block-3";i:2;s:7:"block-4";}s:9:"sidebar-2";a:2:{i:0;s:7:"block-5";i:1;s:7:"block-6";}}}}
theme_switched		Potential conflict with 8753 plugins or themes
(empty string)
theme_mods_nucleus		The theme_mods_nucleus option doesn't have any known conflicts with other themes or plugins.
a:1:{s:18:"nav_menu_locations";a:0:{}}

During use Nucleus may or may not create more options depending on how the theme is configured and depending on which other themes and plugins are active in your specific hosting environment.

After disabling and deleting Nucleus there were 4 options still present in the wp-options table:

current_theme
theme_mods_nucleus
theme_mods_twentytwentytwo
theme_switched

Contact Nucleus experts for help

What new PHP functions does Nucleus declare when it is active?

Installing Nucleus added 37 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
nucleus_admin_header_image	0 conflicts	Fatal error: Cannot redeclare nucleus_admin_header_image()
nucleus_admin_header_style	0 conflicts	Fatal error: Cannot redeclare nucleus_admin_header_style()
nucleus_block_editor_styles	0 conflicts	Fatal error: Cannot redeclare nucleus_block_editor_styles()
nucleus_body_classes	0 conflicts	Fatal error: Cannot redeclare nucleus_body_classes()
nucleus_categorized_blog	0 conflicts	Fatal error: Cannot redeclare nucleus_categorized_blog()
nucleus_category_transient_flusher	0 conflicts	Fatal error: Cannot redeclare nucleus_category_transient_flusher()
nucleus_content_image_sizes_attr	0 conflicts	Fatal error: Cannot redeclare nucleus_content_image_sizes_attr()
nucleus_content_width	0 conflicts	Fatal error: Cannot redeclare nucleus_content_width()
nucleus_custom_header_fonts	0 conflicts	Fatal error: Cannot redeclare nucleus_custom_header_fonts()
nucleus_custom_header_setup	0 conflicts	Fatal error: Cannot redeclare nucleus_custom_header_setup()
nucleus_customize_preview_js	0 conflicts	Fatal error: Cannot redeclare nucleus_customize_preview_js()
nucleus_customizer_css	0 conflicts	Fatal error: Cannot redeclare nucleus_customizer_css()
nucleus_entry_date	0 conflicts	Fatal error: Cannot redeclare nucleus_entry_date()
nucleus_entry_meta	0 conflicts	Fatal error: Cannot redeclare nucleus_entry_meta()
nucleus_entry_taxonomies	0 conflicts	Fatal error: Cannot redeclare nucleus_entry_taxonomies()
nucleus_excerpt	0 conflicts	Fatal error: Cannot redeclare nucleus_excerpt()
nucleus_excerpt_length	0 conflicts	Fatal error: Cannot redeclare nucleus_excerpt_length()
nucleus_excerpt_read_more	0 conflicts	Fatal error: Cannot redeclare nucleus_excerpt_read_more()
nucleus_fonts_url	0 conflicts	Fatal error: Cannot redeclare nucleus_fonts_url()
nucleus_header_style	0 conflicts	Fatal error: Cannot redeclare nucleus_header_style()
nucleus_hex2rgb	0 conflicts	Fatal error: Cannot redeclare nucleus_hex2rgb()
nucleus_javascript_detection	0 conflicts	Fatal error: Cannot redeclare nucleus_javascript_detection()
nucleus_menu_en_apariencia	0 conflicts	Fatal error: Cannot redeclare nucleus_menu_en_apariencia()
nucleus_mostrar_ayuda	0 conflicts	Fatal error: Cannot redeclare nucleus_mostrar_ayuda()
nucleus_post_thumbnail	0 conflicts	Fatal error: Cannot redeclare nucleus_post_thumbnail()
nucleus_post_thumbnail_sizes_attr	0 conflicts	Fatal error: Cannot redeclare nucleus_post_thumbnail_sizes_attr()
nucleus_resource_hints	0 conflicts	Fatal error: Cannot redeclare nucleus_resource_hints()
nucleus_sanitize_checkbox	0 conflicts	Fatal error: Cannot redeclare nucleus_sanitize_checkbox()
nucleus_sanitize_fonts	0 conflicts	Fatal error: Cannot redeclare nucleus_sanitize_fonts()
nucleus_sanitize_text	0 conflicts	Fatal error: Cannot redeclare nucleus_sanitize_text()
nucleus_sanitize_text_top_bar	0 conflicts	Fatal error: Cannot redeclare nucleus_sanitize_text_top_bar()
nucleus_sanitize_theme_color	0 conflicts	Fatal error: Cannot redeclare nucleus_sanitize_theme_color()
nucleus_scripts	0 conflicts	Fatal error: Cannot redeclare nucleus_scripts()
nucleus_setup	0 conflicts	Fatal error: Cannot redeclare nucleus_setup()
nucleus_theme_customizer	0 conflicts	Fatal error: Cannot redeclare nucleus_theme_customizer()
nucleus_widget_tag_cloud_args	0 conflicts	Fatal error: Cannot redeclare nucleus_widget_tag_cloud_args()
nucleus_widgets_init	0 conflicts	Fatal error: Cannot redeclare nucleus_widgets_init()

Using Nucleus 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 Nucleus from the command line with WP-CLI

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

wp theme install nucleus

How to activate Nucleus from the command line with WP-CLI

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

wp theme install nucleus --activate

How to reinstall Nucleus from the command line with WP-CLI

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

wp theme install nucleus --force

How to update Nucleus to the latest version from the command line with WP-CLI

wp theme update nucleus

How to delete Nucleus from the command line with WP-CLI

wp theme delete nucleus --force

Where can you download earlier versions of Nucleus?

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 Nucleus 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 Nucleus

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 Nucleus. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.