GHC 8.4.2: "Got error while processing diagnostics: unable to load package `integer-gmp-1.0.2.0'"

[runeksvendsen]

I'm getting the error below when I try to view src/Paths.hs in VS Code from the following repo/branch: https://github.com/runeksvendsen/crypto-venues/tree/graph

Got error while processing diagnostics: unable to load package 'integer-gmp-1.0.2.0'

I'm using the Stack resolver nightly-2018-05-30 (GHC 8.4.2), which matches the output of hie --compiler.

[alanz]

Is this on macos? I think there is issue around integer-gmp on that platform and/or windows

Does the project build outside of hie?

[runeksvendsen]

Oh, yes, I forgot to mention I'm on MacOS.

The aforementioned repo/branch (https://github.com/runeksvendsen/crypto-venues/tree/graph) does not build, but I've tried out-commenting the errors in src/Paths.hs, so that the project builds, and I still get the integer-gmp-related error.

[Tehnix]

I think the issue with integer-gmp was fixed in 8.4.3, but I’m not entirely sure. Would you be able to test against a resolver with that GHC version?

[runeksvendsen]

@Tehnix How do I build hie with GHC 8.4.3 inside?

I tried changing Stack resolver for my project to nightly-2018-06-02, but now I get an error from ghc-mod:

[ghcmod]
Bad interface file: /Users/runesvendsen/.stack/snapshots/x86_64-osx/nightly-2018-06-02/8.4.3/lib/x86_64-osx-ghc-8.4.3/http-client-0.5.12.1-Jz7lKEONVEuEVWDof4BXPO/Network/HTTP/Client.hi
    mismatched interface file versions (wanted "8042", got "8043")

which, I assume, is related to the mismatch between hies compiler (ghc-8.4.2) and what's now used by my project.

[alanz]

hie current master does support GHC 8.4.3, if you install it via the makefile, and update the vscode plugin to 0.0.18 (which has a bug for windows, must turn tracing to verbose else hie wont start, #90 )

[runeksvendsen]

I updated hie to current master and built hie-8.4.3 (hie --compiler now says ghc-8.4.3), but unfortunately VS Code still gives me the error Got error while processing diagnostics: unable to load package 'integer-gmp-1.0.2.0' using vscode-hie-server version 0.0.19.

[lukel97]

This is caused by a known issue with GHC, in the meantime try the workaround here: haskell/haskell-ide-engine#562

[runeksvendsen]

@bubba which workaround are you referring to? I’m using GHC installed by Stack, for what it’s worth.

[lukel97]

@runeksvendsen The workaround I used was renaming /Users/luke/.stack/programs/x86_64-osx/ghc-8.4.3/lib/ghc-8.4.3/integer-gmp-1.0.2.0/HSinteger-gmp-1.0.2.0.o to some other random file

[runeksvendsen]

Thank you @bubba! That got rid of the error.

Feel free to close this issue if you feel like it (not sure whether or not I should close it, given that a workaround is required).

[alanz]

@bubba do we need to update the readme for this?

[lukel97]

Readme was updated, I think this can be closed now

[AlexeyRaga]

Do we have a solution for this issue?
I started having Got error while processing diagnostics: unable to load package integer-gmp-1.0.2.0'` on GHC 8.4.4 after updating to the latest commit.

I renamed all the HSinteger-gmp-1.0.2.0.o I have found for that GHC, but I am still having this problem...

At the same time, cabal new-build works fine.

[AlexeyRaga]

Oh, actually, I have found yet another occurrence of HSinteger-gmp-1.0.2.0.o and renaming it helped.

[jneira]

I think we could close this one as it has a known workaround and it is documented