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tanstack react form devtools throws Error: useTheme must be used within a ThemeContextProvider #2064
Description
Describe the bug
tanstack react form devtools throws this error when loaded, and stops it from working
Uncaught (in promise) Error: useTheme must be used within a ThemeContextProvider
at useTheme (chunk-56NUFDJ6.js?v=d10fd6f2:50:11)
at useStyles (components-2SGOHMA5.js?v=d10fd6f2:626:21)
at Shell (components-2SGOHMA5.js?v=d10fd6f2:927:18)
at chunk-33JTHASM.js?v=d10fd6f2:575:12
at untrack (chunk-33JTHASM.js?v=d10fd6f2:462:12)
at Object.fn (chunk-33JTHASM.js?v=d10fd6f2:571:37)
at runComputation (chunk-33JTHASM.js?v=d10fd6f2:734:22)
at updateComputation (chunk-33JTHASM.js?v=d10fd6f2:717:3)
at devComponent (chunk-33JTHASM.js?v=d10fd6f2:582:3)
at createComponent (chunk-33JTHASM.js?v=d10fd6f2:1295:10)
Your minimal, reproducible example
https://stackblitz.com/github/tanstack/form/tree/main/examples/react/devtools
Steps to reproduce
The default devtools example shows the bug
Open devtools panel, and you will see the error in browser console
Expected behavior
shows the devtools for forms
How often does this bug happen?
None
Screenshots or Videos
No response
Platform
MacOS, Chrome
TanStack Form adapter
None
TanStack Form version
1.28.4
TypeScript version
No response
Additional context
@tanstack/react-form-devtools version: 0.2.17
Activity
BlankParticle commentedon Mar 16, 2026
Has been fixed in version
0.2.19by #2079