custom-setup causes HIE exception

[tim2CF]

• MacOS
• Atom text editor
• Stack 2.1.3
• lts-13.19
• GHC 8.6.4

I'm using proto-lens library in my project. It implies usage of custom-setup in package.yaml. This causes exception in HIE which popups in my text editor with error message. Also in developer console of text editor I can see some warnings as well:

I tried different builds of HIE for different LTS, but result is always the same. From debug logs I figured out that it's something about Cabal package, but looks like it's actually installed and even version is matching:

itkachuk$ cabal --version
cabal-install version 2.4.1.0
compiled using version 2.4.1.0 of the Cabal library

Without custom-setup it works just fine. This issue can be easily reproduced with any example from proto-lens github repo. Thanks for the help.

[jneira]

This one reminds me #1462 cause the error is the same step, both are using custom-setup with stack and package.yaml and they are trying to install Cabal-2.4.1.0.
In this case the cabal executable is in PATH but it cant find the package Cabal-2.4.1.0. Installing the library Cabal-2.4.1.0 is needed cause, although you have cabal-2.4.1.0 (the executable), ghc-8.6.4 has installed globally Cabal-2.4.0.1 (the library), and it dont know anything about the cabal excutable.

As the failing step is

The package list for `hackage.haskell.org` does not exist. You may to run `cabal update` to download it

i would follow the recommendation, running cabal update in a shell to make cabal create the necessary metadata under ~/.cabal. If cabal update fails, please attach the output of cabal update -v3.

[tim2CF]

Thanks a lot, cabal update solved the issue!