# UnifiedFiler v1.9.3-fix1 Notes

This patch fixes a demo startup error reported as:

```text
demo-bootstrap.js:116 Uncaught TypeError: appStorage.init is not a function
```

## Fixes

- Demo bootstrap now initializes adapters through a safe `_initializeAdapter()` helper.
- `BaseStorageAdapter` now provides a default no-op `init()` method.
- Concrete adapters that need startup work, such as `IndexedDbAdapter`, continue to override `init()`.
- FilePicker / FileSaver folder tree options introduced in v1.9.3 are preserved.

## Compatibility

The patch is backward compatible with v1.9.3. Host applications may still provide their own adapters. If a Host adapter does not need initialization, it can omit `init()` or inherit the no-op base implementation.