wp-admin/includes/class-language-pack-upgrader-skin.php:71Displays an error message about the update.
$errorsstring|WP_Error public function error( $errors ) { echo '<div class="lp-error">'; parent::error( $errors ); echo '</div>'; }Introduced in 3.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-language-pack-upgrader-skin.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.