Cannot access Mastra Cloud project UI - React Query error
Expected behavior:
- Should be able to access and view my project in Mastra Cloud dashboard
- UI should load normally
Actual behavior:
- Page shows "Something went wrong!" error screen
- Console shows repeated error: "Error: No QueryClient set, use QueryClientProvider to set one"
- Cannot access project interface
Error details:
Steps to reproduce:
1. Navigate to Mastra Cloud project
2. Page loads with error screen
3. Open browser console
4. Error appears immediately
What I've tried:
- Hard refresh (Cmd+Shift+R)
- Cleared browser cache and site data
- Tested in incognito/private mode
- Tested on Firefox and Chrome
- Issue persists across all attempts
Environment:
- Browser: Chrome & Firefox (latest versions)
- OS: macOS
- Issue occurs on all browsers/devices tested
Question:
Is this a known issue? Is there a workaround or fix?
Thanks!

3 Replies
š Created GitHub issue: https://github.com/mastra-ai/mastra/issues/10354
š If you're experiencing an error, please provide a minimal reproducible example to help us resolve it quickly.
š Thank you @Hugo Deiss for helping us improve Mastra!
Hi @Hugo Deiss , thanks for raising. This is now fixed, please check again
Hi, seems to work ! thanks š