wpsnoop: fix Flatter theme conflicts, errors & issues

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


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

Get professional support for Flatter here

When you need professional help with WordPress: get help here


What does Flatter version 2.1.6.1 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for Flatter to perform differently in your installation, previous versions before 2.1.6.1 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 2.1.6.1 of Flatter 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 Flatter 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.

Which new files does Flatter add to WordPress?

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

Type & Path Size Conflicts
wp-content/themes/flatter/ 2.72MB No known conflicts with other themes or plugins.
wp-content/themes/flatter/404.php 1.58kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/archive.php 2.22kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/changelog.txt 4.91kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/comments.php 2.42kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/contact.php 1.78kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/ 425.89kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/animate.css 70.57kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/bootstrap-rtl.css 117.21kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/bootstrap.css 142.65kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/flatter-customizer.css 470.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/font-awesome.css 32.45kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/main.css 53.40kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/owl.carousel.css 1.45kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/owl.theme.css 1.64kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/responsive.css 109.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/css/rtl.css 5.96kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fonts/ 701.59kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fonts/fontawesome-webfont.eot 59.34kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fonts/fontawesome-webfont.svg 306.05kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fonts/fontawesome-webfont.ttf 119.23kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fonts/fontawesome-webfont.woff 69.83kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fonts/fontawesome-webfont.woff2 55.45kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fonts/FontAwesome.otf 91.69kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/footer.php 4.25kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/fullwidth.php 1.35kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/functions.php 17.45kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/header.php 2.68kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/images/ 91.91kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/images/grabbing.png 116.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/images/slider1.jpg 91.79kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/ 58.03kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/class.php 1.72kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/custom-header.php 1.99kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/customizer.php 37.51kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/extras.php 4.47kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/jetpack.php 751.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/template-tags.php 4.02kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/inc/wp_bootstrap_navwalker.php 7.58kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/index.php 5.78kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/ 241.46kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/bootstrap-rtl.js 57.09kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/bootstrap.js 67.34kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/customizer.js 506.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/flatter-customizer.js 334.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/jquery.smartmenus.js 43.15kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/owl.carousel.js 51.56kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/script.js 6.32kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/js/wow.js 15.18kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/languages/ 10.89kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/languages/flatter.pot 10.89kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/page.php 1.77kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/readme.txt 6.14kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/screenshot.png 1.14MB No known conflicts with other themes or plugins.
wp-content/themes/flatter/search.php 2.15kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/searchform.php 1.08kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/sidebar-left.php 377.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/sidebar-right.php 377.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/single.php 1.61kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/style.css 1.57kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-blog.php 2.81kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-home.php 17.17kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-parts/ 7.45kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-parts/content-none.php 1.17kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-parts/content-page.php 1.71kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-parts/content-search.php 1.10kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-parts/content-single.php 2.24kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/template-parts/content.php 1.22kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/woocommerce.php 1.55kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/woocommerce/ 1.88kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/woocommerce/global/ 1.88kB No known conflicts with other themes or plugins.
wp-content/themes/flatter/woocommerce/global/breadcrumb.php 630.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/woocommerce/global/sidebar.php 75.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/woocommerce/global/wrapper-end.php 474.00B No known conflicts with other themes or plugins.
wp-content/themes/flatter/woocommerce/global/wrapper-start.php 750.00B No known conflicts with other themes or plugins.

Which new shortcodes does Flatter add to WordPress?

Which new database tables are created by the WordPress theme Flatter?

Which new options are added to the wp-options table by Flatter?

Option Name   Known Conflicts
current_theme Potential conflict with 8753 plugins or themes
theme_mods_twentytwentytwo Potential conflict with 8767 plugins or themes
theme_switched Potential conflict with 8753 plugins or themes
theme_mods_flatter The theme_mods_flatter option doesn't have any known conflicts with other themes or plugins.

During use Flatter 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.

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

Function   Conflicts Common Errors
flatter_add_editor_styles 0 conflicts Fatal error: Cannot redeclare flatter_add_editor_styles()
flatter_admin_header_image 0 conflicts Fatal error: Cannot redeclare flatter_admin_header_image()
flatter_admin_header_style 0 conflicts Fatal error: Cannot redeclare flatter_admin_header_style()
flatter_body_classes 0 conflicts Fatal error: Cannot redeclare flatter_body_classes()
flatter_breadcrumb_defaults 0 conflicts Fatal error: Cannot redeclare flatter_breadcrumb_defaults()
flatter_breadcrumbs 0 conflicts Fatal error: Cannot redeclare flatter_breadcrumbs()
flatter_categorized_blog 0 conflicts Fatal error: Cannot redeclare flatter_categorized_blog()
flatter_category_transient_flusher 0 conflicts Fatal error: Cannot redeclare flatter_category_transient_flusher()
flatter_comment_button 0 conflicts Fatal error: Cannot redeclare flatter_comment_button()
flatter_comment_form 0 conflicts Fatal error: Cannot redeclare flatter_comment_form()
flatter_comment_form_fields 0 conflicts Fatal error: Cannot redeclare flatter_comment_form_fields()
flatter_content_width 0 conflicts Fatal error: Cannot redeclare flatter_content_width()
flatter_custom_comments 0 conflicts Fatal error: Cannot redeclare flatter_custom_comments()
flatter_custom_header_setup 0 conflicts Fatal error: Cannot redeclare flatter_custom_header_setup()
flatter_customize_preview_js 0 conflicts Fatal error: Cannot redeclare flatter_customize_preview_js()
flatter_customize_register 0 conflicts Fatal error: Cannot redeclare flatter_customize_register()
flatter_customizer_js 0 conflicts Fatal error: Cannot redeclare flatter_customizer_js()
flatter_customizer_register 0 conflicts Fatal error: Cannot redeclare flatter_customizer_register()
flatter_entry_footer 0 conflicts Fatal error: Cannot redeclare flatter_entry_footer()
flatter_entry_meta 0 conflicts Fatal error: Cannot redeclare flatter_entry_meta()
flatter_excerpt_length 0 conflicts Fatal error: Cannot redeclare flatter_excerpt_length()
flatter_fonts_url 0 conflicts Fatal error: Cannot redeclare flatter_fonts_url()
flatter_get_link_url 0 conflicts Fatal error: Cannot redeclare flatter_get_link_url()
flatter_header_style 0 conflicts Fatal error: Cannot redeclare flatter_header_style()
flatter_infinite_scroll_render 0 conflicts Fatal error: Cannot redeclare flatter_infinite_scroll_render()
flatter_jetpack_setup 0 conflicts Fatal error: Cannot redeclare flatter_jetpack_setup()
flatter_pagination_bars 0 conflicts Fatal error: Cannot redeclare flatter_pagination_bars()
flatter_post_nav 0 conflicts Fatal error: Cannot redeclare flatter_post_nav()
flatter_posted_on 0 conflicts Fatal error: Cannot redeclare flatter_posted_on()
flatter_sanitize_category 0 conflicts Fatal error: Cannot redeclare flatter_sanitize_category()
flatter_sanitize_text 0 conflicts Fatal error: Cannot redeclare flatter_sanitize_text()
flatter_sanitize_textarea 0 conflicts Fatal error: Cannot redeclare flatter_sanitize_textarea()
flatter_scripts 0 conflicts Fatal error: Cannot redeclare flatter_scripts()
flatter_setup 0 conflicts Fatal error: Cannot redeclare flatter_setup()
flatter_tag_cloud_args 0 conflicts Fatal error: Cannot redeclare flatter_tag_cloud_args()
flatter_the_post_thumbnail_caption 0 conflicts Fatal error: Cannot redeclare flatter_the_post_thumbnail_caption()
flatter_widgets_init 0 conflicts Fatal error: Cannot redeclare flatter_widgets_init()
flatter_woocommerce_support 0 conflicts Fatal error: Cannot redeclare flatter_woocommerce_support()

Using Flatter 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 Flatter from the command line with WP-CLI

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

wp theme install flatter


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

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

wp theme install flatter --activate


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

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

wp theme install flatter --force


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

wp theme update flatter


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

wp theme delete flatter --force

Where can you download earlier versions of Flatter?

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 Flatter 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 Flatter

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