Error when running cabal build all of the master branch

[fajard01]

I've cloned the repository, setup my IOHK caches, then ran nix-shell after which I do a cabal update which all goes fine. However when I run cabal build all, I get this error:

cabal: Failed to build prettyprinter-configurable-0.1.0.0 (which is required
by test:unit from plutus-merkle-tree-1.0.0, exe:tx-cost from hydra-node-0.3.0
and others). The failure occurred during the configure step. The exception
was:
dieVerbatim: user error (cabal:
'/nix/store/k55ry7wsp852fg4rmck8yly4sxhrrqw0-ghc-shell-for-packages-ghc-8.10.7-env/bin/ghc'
exited with an error:

/home/datapool/hydra-poc/dist-newstyle/tmp/src-1167189/prettyprinter-configurable-0.1.0.0/dist/setup/setup.hs:12:1:
error:
Could not find module `Distribution.Extra.Doctest'
There are files missing in the `cabal-doctest-1.0.8' package,
try running 'ghc-pkg check'.
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
|
12 | import Distribution.Extra.Doctest (defaultMainWithDoctests)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)

Is there any fix? Everything in my system is up to date as well.

[abailly-iohk]

I have not been able to reproduce the issue even using a fresh new VM using https://github.com/abailly-iohk/nix-haskell-dev-vm

[abailly-iohk]

The nix caches setup is a bit different from the default as we are using a private cachix cache. I will try rebuilding everything without this custom cache.

[abailly-iohk]

Even letting aside the hydra-node specific cache, I was not able to reproduce the issue starting from a pristine VM and master clone:

$ cd hydra-poc
$ direnv allow
....
$ cabal update && cabal build all --enable-tests
...
Installing   prettyprinter-configurable-0.1.0.0 (all, legacy fallback)
Building     hspec-discover-2.8.3 (exe:hspec-discover)
Installing   hspec-discover-2.8.3 (exe:hspec-discover)
Completed    prettyprinter-configurable-0.1.0.0 (all, legacy fallback)

[abailly-iohk]

@fajard01 I suspect something else in your system is messing up with the dependencies. Have you separately built the plutus or plutus-apps repo, for example? My understanding is that although nix works hard towards making build isolated and reproducible, it's not 100% possible with cabal because the latter seems to insist on using per user dependencies cache in the ~/.cabal directory.

[fajard01]

I have built the plutus-apps repo without any issue and I haven't had a problem with the plutus-pioneer lectures whatsoever. Could it be that my plutus-apps branch interferes with the hydra branch? I shall play around with the cache and see if I can find a solution. I'm not on a VM but on a standalone Archlinux installation but i wouldn't think that matters.

[abailly-iohk]

@fajard01 You are not doing anything wrong, it seems that our dependency management was inconsistent. Could you try building branch from PR #226?

[fajard01]

Yes all working! Thanks for the crisp reply.
Marked as solved.