slimphp/Slim · error · HttpNotFoundException

404

404

Error message

Not found.

What it means

Error "Not found." thrown in slimphp/Slim.

Source

Thrown at Slim/Middleware/RoutingMiddleware.php:76

    {
        $request = $request->withAttribute(RouteContext::ROUTE_PARSER, $this->routeParser);

        $routingResults = $this->resolveRoutingResultsFromRequest($request);
        $routeStatus = $routingResults->getRouteStatus();

        $request = $request->withAttribute(RouteContext::ROUTING_RESULTS, $routingResults);

        switch ($routeStatus) {
            case RoutingResults::FOUND:
                $routeArguments = $routingResults->getRouteArguments();
                $routeIdentifier = $routingResults->getRouteIdentifier() ?? '';
                $route = $this->routeResolver
                    ->resolveRoute($routeIdentifier)
                    ->prepare($routeArguments);
                return $request->withAttribute(RouteContext::ROUTE, $route);

            case RoutingResults::NOT_FOUND:
                throw new HttpNotFoundException($request);

            case RoutingResults::METHOD_NOT_ALLOWED:
                $exception = new HttpMethodNotAllowedException($request);
                $exception->setAllowedMethods($routingResults->getAllowedMethods());
                throw $exception;

            default:
                throw new RuntimeException('An unexpected error occurred while performing routing.');
        }
    }

    /**
     * Resolves the route from the given request
     */
    protected function resolveRoutingResultsFromRequest(ServerRequestInterface $request): RoutingResults
    {
        return $this->routeResolver->computeRoutingResults(
            $request->getUri()->getPath(),

View on GitHub (pinned to 80900fb39c)

When it happens

Trigger: Thrown at Slim/Middleware/RoutingMiddleware.php:76 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/d7e4d324e526de48. Report an issue: GitHub.