# bug: onError not reporting original error
bug: since TRPC v11.5.0 errors on createTRPCOptionsProxy are broken and not typed properly
⏮ needs reproduction🐛 bug: unconfirmed
bug: TRPC with nextjs 15(App Router) production build failed!
👻 invalid🐛 bug: unconfirmed
bug: Can't create "createClient" after creating "createTRPCReact<AppRouter>()"
👻 invalid🔎 needs more investigation/info⏮ needs reproduction🐛 bug: unconfirmed⏳ close if no activity