Seldaek/monolog · error · LogicException

Unsupported operation

Error message

Unsupported operation

What it means

Error "Unsupported operation" thrown in Seldaek/monolog.

Source

Thrown at src/Monolog/LogRecord.php:74

            return;
        }

        throw new \LogicException('Unsupported operation: setting '.$offset);
    }

    public function offsetExists(mixed $offset): bool
    {
        if ($offset === 'level_name') {
            return true;
        }

        return isset($this->{$offset});
    }

    public function offsetUnset(mixed $offset): void
    {
        throw new \LogicException('Unsupported operation');
    }

    public function &offsetGet(mixed $offset): mixed
    {
        // handle special cases for the level enum
        if ($offset === 'level_name') {
            // avoid returning readonly props by ref as this is illegal
            $copy = $this->level->getName();

            return $copy;
        }
        if ($offset === 'level') {
            // avoid returning readonly props by ref as this is illegal
            $copy = $this->level->value;

            return $copy;
        }

View on GitHub (pinned to 57eb102834)

When it happens

Trigger: Thrown at src/Monolog/LogRecord.php:74 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/5216f466798f87b6. Report an issue: GitHub.