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"Cannot read properties of undefined (reading 'update')" in latest @tanstack/react-router-ssr-query version #4902
Description
Which project does this relate to?
Start
Describe the bug
When loading the website, the "Cannot read properties of undefined (reading 'update')" error happens
Your Example Website or App
https://codesandbox.io/p/sandbox/github/revosw/tanstack-start-start-request-resolver
Steps to Reproduce the Bug or Issue
- install
@tanstack/react-router-ssr-query - use
setupRouterSsrQueryIntegrationinrouter.tsx - run
vite dev
Expected behavior
The site should load without problems
Screenshots or Videos
No response
Platform
- Router / Start Version: 1.131.2
- OS: Windows
- Browser: Edge
- Browser Version: Version 139.0.3405.86 (Official build) (64-bit)
- Bundler: vite
- Bundler Version: 7.1.1
"dependencies": {
"@tanstack/react-query": "^5.84.2",
"@tanstack/react-router": "1.131.2",
"@tanstack/react-router-devtools": "1.131.2",
"@tanstack/react-router-ssr-query": "^1.131.2",
"@tanstack/react-start": "1.131.2",
"react": "19.1.1",
"react-dom": "19.1.1"
},
"devDependencies": {
"@biomejs/biome": "^2.1.4",
"@tailwindcss/vite": "^4.1.11",
"@tanstack/react-query-devtools": "^5.84.2",
"@tanstack/router-cli": "^1.131.2",
"@tanstack/router-devtools": "^1.131.2",
"@types/node": "24.2.1",
"@types/react": "19.1.9",
"@types/react-dom": "19.1.7",
"@vitejs/plugin-react": "^5.0.0",
"tailwindcss": "4.1.11",
"typescript": "5.9.2",
"vite": "^7.1.1",
"vite-plugin-devtools-json": "^0.4.1",
"vite-tsconfig-paths": "^5.1.4"
},Additional context
No response
Activity
schiller-manuel commentedon Aug 9, 2025
the codesandbox does not use the
@tanstack/react-router-ssr-querypackage. can you please provide a complete example?revosw commentedon Aug 10, 2025
Ahh codesandbox is so frustrating regarding problems around syncing the codesandbox with new git changes. I recreated the entire codesandbox and updated the link in my original answer with this:
https://codesandbox.io/p/sandbox/github/revosw/tanstack-start-start-request-resolver
schiller-manuel commentedon Aug 10, 2025
you need to return the router as shown in the docs