Type error in `useStore` when upgrading from 1.28.0 to 1.28.4

Open

#323 opened on Mar 10, 2026 2 comments 1 reaction 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 52/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Quiet
Tech stack: react, typescript
Domain: frontend

Research direction

Start with the linked minimal reproduction and run pnpm build, focusing on the useStore call in src/App.tsx. Compare the relevant useStore types between versions 1.28.0 and 1.28.4; done means the reproduction builds without the TS2554 error while preserving the reported one-argument usage.

Written by the indexing model from the issue text.

Description

Describe the bug

We have a fair few places in our codebase where we have previously done

  const formState = useStore(form.store);

which has worked fine until I just tried to upgrade to 1.28.4, where it now fails with

src/App.tsx:13:21 - error TS2554: Expected 2-3 arguments, but got 1.

13   const formState = useStore(form.store)

And yes, I know this is not how you're supposed to write it, but that's how it was written by the guy who wrote it.

Your minimal, reproducible example

https://github.com/sondr3/tanstack-react-form-types

Steps to reproduce

pnpm build
Observe type error

Expected behavior

No breaking changes in patch releases.

How often does this bug happen?

Every time

Screenshots or Videos

No response

Platform

N/A

TanStack Form adapter

react-form

TanStack Form version

1.28.4

TypeScript version

5.9.3

Additional context