public function commandError($errorMessage)
    {
        $output = PHP_EOL.Colors::BG_RED.str_repeat(" ", strlen($errorMessage)+4).PHP_EOL.
        Colors::WHITE ."  $errorMessage  ".PHP_EOL.
        Colors::BG_RED.str_repeat(" ", strlen($errorMessage)+4).PHP_EOL.
        Colors::BG_BLACK.Colors::WHITE;
        return $output;
    }