simplepie / simplepie-ng

src/Enum/CharacterSet.php

<?php
/**
 * Copyright (c) 2017–2019 Ryan Parman <http://ryanparman.com>.
 * Copyright (c) 2017–2019 Contributors.
 *
 * http://opensource.org/licenses/Apache2.0
 */

declare(strict_types=1);

namespace SimplePie\Enum;

/**
 * Provides a set of known, allowable character encodings.
 */
class CharacterSet extends AbstractEnum

The type SimplePie\Enum\AbstractEnum was not found. Maybe you did not declare it correctly or list all dependencies?

{
    public const ISO_8859_1 = 'iso-8859-1';

    public const US_ASCII = 'us-ascii';

    public const UTF_8 = 'utf-8';

    public const WIN_1252 = 'windows-1252';
}