Title: WP_Upgrader_Skin::error
Published: April 25, 2014
Last modified: August 20, 2026

---

# WP_Upgrader_Skin::error( string|WP_Error $errors )

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#wp--skip-link--target)

Displays an error message about the update.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#parameters)󠁿

 `$errors`string|[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)
required

Errors.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#source)󠁿

    ```php
    public function error( $errors ) {
    	if ( ! $this->done_header ) {
    		$this->header();
    	}
    	if ( is_string( $errors ) ) {
    		$this->feedback( $errors );
    	} elseif ( is_wp_error( $errors ) && $errors->has_errors() ) {
    		foreach ( $errors->get_error_messages() as $message ) {
    			if ( $errors->get_error_data() && is_string( $errors->get_error_data() ) ) {
    				$this->feedback( $message . ' ' . esc_html( strip_tags( $errors->get_error_data() ) ) );
    			} else {
    				$this->feedback( $message );
    			}
    		}
    	}
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-admin/includes/class-wp-upgrader-skin.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-admin/includes/class-wp-upgrader-skin.php#L176)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-admin/includes/class-wp-upgrader-skin.php#L176-L191)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#related)󠁿

| Uses | Description | 
| [WP_Upgrader_Skin::feedback()](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/feedback/)`wp-admin/includes/class-wp-upgrader-skin.php` |

Displays a message about the update.

  | 
| [WP_Upgrader_Skin::header()](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/header/)`wp-admin/includes/class-wp-upgrader-skin.php` |

Displays the header before the update process.

  | 
| [esc_html()](https://developer.wordpress.org/reference/functions/esc_html/)`wp-includes/formatting.php` |

Escaping for HTML blocks.

  | 
| [is_wp_error()](https://developer.wordpress.org/reference/functions/is_wp_error/)`wp-includes/load.php` |

Checks whether the given variable is a WordPress Error.

  |

[Show 2 more](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#)
[Show less](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#)

| Used by | Description | 
| [Language_Pack_Upgrader_Skin::error()](https://developer.wordpress.org/reference/classes/language_pack_upgrader_skin/error/)`wp-admin/includes/class-language-pack-upgrader-skin.php` |

Displays an error message about the update.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_upgrader_skin/error/?output_format=md#changelog)󠁿

| Version | Description | 
| [2.8.0](https://developer.wordpress.org/reference/since/2.8.0/) | Introduced. |

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