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router-core/not-found-and-errors

Configure not-found and error boundaries for TanStack Router route trees.

Updated Apr 2, 2026
Search Tags:#boundary#tanstack-router#not-found#route-masking#loader-errors#notFoundComponent#error-component
One-click install
npx skills add https://github.com/abereghici/skills --skill router-core-not-found-and-errors-abereghici
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Please help me install this Agent Skill.
Skill: router-core/not-found-and-errors
Source: https://github.com/abereghici/skills/tree/main/skills/tanstack-router/not-found-and-errors
Command: npx skills add https://github.com/abereghici/skills --skill router-core-not-found-and-errors-abereghici

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

TanStack Router handles not-found and loader errors by providing guidance to configure notFound, notFoundComponent, defaultNotFoundComponent, and error boundaries to preserve UX.

Core Features & Use Cases

  • Not Found Handling via notFound() in loaders
  • notFoundComponent, defaultNotFoundComponent, and notFoundMode (fuzzy/root)
  • Per-route errorComponent to render custom error UI and retry with router.invalidate()
  • Safe data handling in notFoundComponent and using Route.useParams/useRouteContext

Quick Start

Use this skill to configure root notFoundComponent and per-route error boundaries for a TanStack Router-based app.

Frequently Asked Questions about router-core/not-found-and-errors

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I configure not-found boundaries in TanStack Router?▼

To configure not-found boundaries in TanStack Router, use notFound() within loaders and define notFoundComponent or defaultNotFoundComponent to render custom UI for unmatched routes across global, per-route, and nested scenarios.

What is the difference between fuzzy and root notFoundMode in TanStack Router?▼

The notFoundMode setting in TanStack Router determines boundary matching behavior, allowing you to toggle between fuzzy and root modes to control whether nested or top-level not-found components render for unmatched paths.

How do I handle loader errors with a custom error component in TanStack Router?▼

Handle loader errors by configuring a per-route errorComponent that renders custom error UI, and enable recovery by calling router.invalidate() to retry the failed data fetching process.

Can I safely access route params inside a notFoundComponent in TanStack Router?▼

Yes, you can safely access route parameters inside a notFoundComponent by using Route.useParams and Route.useRouteContext, ensuring proper data handling when rendering custom not-found UI for specific paths.

Does TanStack Router support nested not-found components for specific route segments?▼

Yes, TanStack Router supports nested not-found components, allowing you to configure per-route boundaries that render specialized UI for unmatched paths within specific route tree segments.

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