# bug: regression / breaking since 1.4.0
Error TS2742 when generating declaration types with trpc.router
wontfix🔎 needs more investigation/info
bug: generated `.d.ts` files leaking un-exported types
🙋♂️ help wanted🐛 bug: unconfirmed⏳ close if no activity
bug: experimental_lazy does not correctly infer type from router
🐛 bug: unconfirmed