settings: openFile: does not exist (No such file or directory) on hlint applyHint

[erykciepiela]

When testing HLS 0.6.0 hlint application for code:

foo :: p -> p
foo i = id i

I get in the plugin logs:

2020-11-12 10:39:52.865812098 [ThreadId 9836] - applyHint:apply=[("/home/test-project/src/Foo.hs:5:1-12: Warning: Eta reduce\nFound:\n  foo i = id i\nPerhaps:\n  foo = id\n",[Replace {rtype = Decl, pos = SrcSpan {startLine = 5, startCol = 1, endLine = 5, endCol = 13}, subts = [("body",SrcSpan {startLine = 5, startCol = 9, endLine = 5, endCol = 11})], orig = "foo = body"}])]
2020-11-12 10:39:52.867264813 [ThreadId 9839] - finish: hlint (took 0.00s)
/opt/ghc/8.8.3/lib/ghc-8.8.3/settings: openFile: does not exist (No such file or directory)
[Error - 10:39:52 AM] Request workspace/executeCommand failed.
  Message: ExitFailure 1
  Code: -32603 

Hlint didn't get applied, the popup "Applying hint: ..." remains open.

Plugin 1.2.0
GHC 8.8.3
HLS 0.6.0

[jneira]

Hi, thanks for the bug report. The same issue was opened recently in hls repo: haskell/haskell-language-server#591

There you could track the progress and the possible workarounds:

• symbolic link ~/.ghcup/ghc to /opt/ghc (replace ~/.ghcup/ghc with the path to your local ghc installation)
• use a hls version built from source

[jneira]

@bubba i would prefer to have this in the vscode, to make it visible for other users that will check there their issue

[jneira]

The issue has been resolved in the server (1.1.0)