Build of graphql-engine binary is failing on ubuntu24.04 on x86_64

[abhijeetdandekaribm]

Version Information

v2.45.1

Environment

OSS

What is the current behaviour?

We are trying to build graphql-binary by cloning graphql-engine repo on ubuntu:24.04 and while running cabal new-build exe:graphql-engine command inside server folder we are facing below errors.

What is the expected behaviour?

The graphql-engine binary which is used in this graphql-engine Dockerfile should get generated after running cabal new-build exe:graphql-engine command.

How to reproduce the issue?

1. Clone the graphql-engine repository on ubuntu 24.04 container.
2. Run apt install -y libpq-dev pkg-config unixodbc unixodbc-dev zlib1g-dev vim git g++ cabal-install ghc command to install ghc, cabal and other required packages.
3. Delete cabal.project.freeze file from graphql-engine folder.
4. Inside server folder run the below commands:
   ln -s cabal/dev.project cabal.project.local
   cabal update
   cabal freeze
   cabal new-build exe:graphql-engine

Screenshots or Screencast

Please provide any traces or logs that could help here.

System/Metrics/Prometheus/Internal/Map2.hs:17:3: error:
    Variable not in scope:
      foldl'
        :: (M.Map k10 (M.Map k20 a0)
            -> (k10, k20, a0) -> M.Map k10 (M.Map k20 a0))
           -> M.Map k0 a1 -> [(k1, k2, a)] -> M.Map k1 (M.Map k2 a)
    Suggested fix:
      Perhaps use one of these:
        M.foldl' (imported from Data.Map.Strict),
        `M.foldl' (imported from Data.Map.Strict),
        `foldl' (imported from Prelude)
   |
17 |   foldl'
   |   ^^^^^^
[ 7 of 20] Compiling System.Metrics.Prometheus.Internal.Sample ( System/Metrics/Prometheus/Internal/Sample.hs, /graphql-engine/dist-newstyle/build/x86_64-linux/ghc-9.4.7/ekg-prometheus-0.3.0.0/opt/build/System/Metrics/Prometheus/Internal/Sample.o, /graphql-engine/dist-newstyle/build/x86_64-linux/ghc-9.4.7/ekg-prometheus-0.3.0.0/opt/build/System/Metrics/Prometheus/Internal/Sample.dyn_o ) [Source file changed]

System/Metrics/Prometheus/Internal/Sample.hs:20:3: error:
    Variable not in scope:
      foldl'
        :: (M.Map k10 (a0, M.Map k20 b0)
            -> (k10, k20, a0, b0) -> M.Map k10 (a0, M.Map k20 b0))
           -> M.Map k0 a1 -> [(k1, k2, a, b)] -> M.Map k1 (a, M.Map k2 b)
    Suggested fix:
      Perhaps use one of these:
        M.foldl' (imported from Data.Map.Strict),
        `M.foldl' (imported from Data.Map.Strict),
        `foldl' (imported from Prelude)
   |
20 |   foldl'

Any possible solutions/workarounds you're aware of?

Update below files with import Data.List (foldl')
graphql-engine/server/lib/ekg-prometheus/System/Metrics/Prometheus/Internal/Map2.hs
graphql-engine/server/lib/ekg-prometheus/System/Metrics/Prometheus/Internal/Sample.hs

[robertjdominguez]

Thanks for the detailed repro, @abhijeetdandekaribm 🙏

Someone will be in touch shortly.

[danieljharvey]

Hello! Which GHC version did apt-get install? You can run ghc --version to find out.

graphql-engine currently requires GHC version 9.10.1 in order to build correctly. The easiest way to install specific GHC versions is with ghcup.

[jberryman]

Whatever you do, you'll need to keep the existing freeze file intact. If just trying to build a production binary then cabal build exe:graphql-engine should suffice. If developing the engine you might find scripts/dev.sh graphql-engine is easier

[abhijeetdandekaribm]

Yes, apt-get was installing ghc-9.4.7. So, I installed ghc-9.10.1 using ghcup tool and cabal build exe:graphql-engine command got executed successfully.
Thanks @robertjdominguez, @danieljharvey, @jberryman for the help!

[abhijeetdandekaribm]

COPY commands used in this graphql-engine Dockerfile are copying the generated graphql-binary that was created using cabal build exe:graphql-engine right?