slimphp/Slim · error · RuntimeException

%s could not instantiate a server request creator.

Error message

%s could not instantiate a server request creator.

What it means

Error "%s could not instantiate a server request creator." thrown in slimphp/Slim.

Source

Thrown at Slim/Factory/Psr17/Psr17Factory.php:68

    public static function getStreamFactory(): StreamFactoryInterface
    {
        if (
            !static::isStreamFactoryAvailable()
            || !(($streamFactory = new static::$streamFactoryClass()) instanceof StreamFactoryInterface)
        ) {
            throw new RuntimeException(get_called_class() . ' could not instantiate a stream factory.');
        }

        return $streamFactory;
    }

    /**
     * {@inheritdoc}
     */
    public static function getServerRequestCreator(): ServerRequestCreatorInterface
    {
        if (!static::isServerRequestCreatorAvailable()) {
            throw new RuntimeException(get_called_class() . ' could not instantiate a server request creator.');
        }

        return new ServerRequestCreator(static::$serverRequestCreatorClass, static::$serverRequestCreatorMethod);
    }

    /**
     * {@inheritdoc}
     */
    public static function isResponseFactoryAvailable(): bool
    {
        return static::$responseFactoryClass && class_exists(static::$responseFactoryClass);
    }

    /**
     * {@inheritdoc}
     */
    public static function isStreamFactoryAvailable(): bool
    {

View on GitHub (pinned to 80900fb39c)

When it happens

Trigger: Thrown at Slim/Factory/Psr17/Psr17Factory.php:68 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of slimphp/Slim@80900fb39c (2026-08-21). Data as JSON: /api/errors/212b78b59e67f2e0. Report an issue: GitHub.