I am getting TypeError: this[#client].defaultMutationOptions is not a function error
I used @ferdiunal/refine-shadcn in my Next.js project, and copied same code in the example but getting I am getting TypeError: this[#client].defaultMutationOptions is not a function error. I searched about that but everyone says it's react-query problem.
How to fix this issue?
3 Replies
Hi @Ghostman. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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Based on the knowledge sources, this error is related to a version compatibility issue with React Query. The error message
TypeError: this[#client].defaultMutationOptions is not a function typically occurs when you're using React Query v5 with Refine, which currently only supports React Query v4.
Several users have reported this same issue in the GitHub issues:
1. In issue #6408, users experienced this error when using React Query v5 with Refine. The solution was to explicitly install v4 of React Query.
2. In issue #6433, a Refine team member confirmed that they don't support React Query v5 yet and pointed to an ongoing issue tracking the upgrade.
To fix this issue, you need to:
1. Check your package.json for the React Query version
2. If you're using React Query v5, downgrade to v4:
Or with yarn:
If you're using a monorepo or have other packages that depend on React Query v5 (like tRPC v11), you might face additional challenges as mentioned in issue #6433.
The Refine team is aware of this issue and has an open ticket (issue #5370) to upgrade to React Query v5, but it's not active yet as it requires breaking changes.
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extended-salmonOP•2w ago
Then I am getting the other error
How to fix this?