Seldaek/monolog · error · InvalidArgumentException

Unknown parseMode, use one of these: {}.

Error message

Unknown parseMode, use one of these: {}.

What it means

Error "Unknown parseMode, use one of these: {}." thrown in Seldaek/monolog.

Source

Thrown at src/Monolog/Handler/TelegramBotHandler.php:143

        parent::__construct($level, $bubble);

        $this->apiKey = $apiKey;
        $this->channel = $channel;
        $this->setParseMode($parseMode);
        $this->disableWebPagePreview($disableWebPagePreview);
        $this->disableNotification($disableNotification);
        $this->splitLongMessages($splitLongMessages);
        $this->delayBetweenMessages($delayBetweenMessages);
        $this->setTopic($topic);
    }

    /**
     * @return $this
     */
    public function setParseMode(string|null $parseMode = null): self
    {
        if ($parseMode !== null && !\in_array($parseMode, self::AVAILABLE_PARSE_MODES, true)) {
            throw new \InvalidArgumentException('Unknown parseMode, use one of these: ' . implode(', ', self::AVAILABLE_PARSE_MODES) . '.');
        }

        $this->parseMode = $parseMode;

        return $this;
    }

    /**
     * @return $this
     */
    public function disableWebPagePreview(bool|null $disableWebPagePreview = null): self
    {
        $this->disableWebPagePreview = $disableWebPagePreview;

        return $this;
    }

    /**

View on GitHub (pinned to 57eb102834)

When it happens

Trigger: Thrown at src/Monolog/Handler/TelegramBotHandler.php:143 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Seldaek/monolog@57eb102834 (2026-08-17). Data as JSON: /api/errors/9b7e8de858fde212. Report an issue: GitHub.