# Deep link or notification opens a screen with no back button

> Nothing tells the stack which screen sits underneath when it is entered directly.

Web page: https://davidewins.com/errors/expo-router-deep-link-no-back-button

Expo. Likely fix, 7 October 2026.

Versions: Expo SDK 57, expo-router 57.0.24

There is no error message for this one, only the symptom in the title.

## Cause

Nothing tells the stack which screen sits underneath when it is entered directly.

## Fix

Set the anchor in that stack's layout (it replaced `initialRouteName`):
```tsx
export const unstable_settings = { anchor: 'exercises' };
```

## More Expo errors

- [Dev client red screen: No script URL provided (launcher never appears)](https://davidewins.com/errors/expo-dev-client-no-script-url-precompiled)
- [Bundle fails with Invalid expression encountered after supabase-js update](https://davidewins.com/errors/supabase-js-hermes-invalid-expression)
- [After upgrading to SDK 57, expo-font / expo-image / expo-asset config is missing](https://davidewins.com/errors/expo-sdk57-plugins-must-be-declared)
- [SDK upgrade: export dies with SyntaxError after expo install --fix](https://davidewins.com/errors/expo-install-fix-leaves-babel-preset-stale)
- [expo-doctor wants TypeScript 6 but tsc reports hundreds of errors](https://davidewins.com/errors/typescript-6-explodes-typecheck-expo)

[Search all errors](https://davidewins.com/errors)