How to remove old build plans installed by the Haskell stack?

Question

How to remove old build plans (compiler and GHC packages) installed by the stack tool?

Answer 1

I would deflate ~ / .stack and delete all the files that you no longer need:

• compiled libraries for the recognizer in ~ / .stack / snapshots / ...
• toolchains compiler in ~ / .stack / programs / ...
• build plans for yaml files in ~ / .stack / build-plan / ...