protected static function displayError($errorMessage, $displayHelp = false, $exit = true)
    {
        echo "\n  " . self::red() . 'Error: ' . self::resetColor() . $errorMessage . "\n";
        if ($displayHelp) {
            self::helpAction();
        } else {
            echo "\n";
        }
        if ($exit) {
            exit(1);
        }
    }