Command::getError

public function getError()
{
	if($this->status === static::STATUS_ERROR)
	{
		$message = null;
		if($this->errorCode)
		{
			$message = $this->getErrorMessages()[$this->errorCode];
		}
		if(!$message)
		{
			$message = $this->error;
		}
		if(!$message)
		{
			$message = $this->getErrorMessages()[static::ERROR_CONTROLLER_UNKNOWN_ERROR];
		}

		return new Error($message, $this->errorCode, ['originalMessage' => $this->error]);
	}

	return null;
}