Zulip Chat Archive
Stream: lean4
Topic: Lake cache asks me to run lake cache manually.
Shreyas Srinivas (Dec 04 2025 at 14:54):
Steps to run
- Start a project on toolchain v4.25.1
- Run lake update. lake says you need to run cache manually because the default toolchain outside the project is 4.24.0
- cd into the project directory
- run
lake exe cache get - Lake again says
You should run `lake exe cache get` manually.
Fetching ProofWidgets cloud release... done!
Current branch: HEAD
Using cache (Azure) from origin: leanprover-community/mathlib4
No files to download
Decompressing 7536 file(s)
Unpacked in 7400 ms
Completed successfully!
- Run
lake build. lake is now building all of mathlib
Ruben Van de Velde (Dec 04 2025 at 16:00):
Try 4.25.2
Shreyas Srinivas (Dec 04 2025 at 16:01):
Okay. I made it work by going to 4.26.0-rc2
Shreyas Srinivas (Dec 04 2025 at 16:06):
I'll note that I also tried setting Mathlib's rev to stable and lake fixed the toolchain to v4.25.1
Ruben Van de Velde (Dec 04 2025 at 16:39):
Shreyas Srinivas said:
I'll note that I also tried setting Mathlib's rev to
stableand lake fixed the toolchain tov4.25.1
So it seems. @Kim Morrison Kiiiiiiiiiiiiiiiiiiim! :)
Kim Morrison (Dec 11 2025 at 03:41):
Thanks, stable has been updated to v4.25.2. (The dangers of doing things manually when you have perfectly good automated scripts to handle it...)
Last updated: Dec 20 2025 at 21:32 UTC