Some modules in cabal package does not get error checked on save and does not show any messages in the "Problems" tab.

First off, thanks for taking the time to make such a good haskell plugin for VS Code. It has certainly removed a lot of friction from my previous Vim/plugins setup.

• Bug description : I have set up Intero following the install guide. It works beautifully on my stack/cabal package. The other day I opened a module I have not edited in a long time. To my surprise, when I edit this module I get no compilation errors, syntax errors etc. All other modules I have edited in my package does get this. Is there some caveat in my configuration that could lead to this? As far as I understand there is nothing special with the module that does not receive warnings and errors.

• Observed behaviour : At least one of the modules in my stack/cabal package does not receive GHC-warning, GHC compile errors etc. All others do so.

• Expected behaviour : All modules should receive GHC-warnings and compile errors.

• OS: linux (Ubuntu 16.04.2 LTS)

• Plugin (ghc, stack, intero and haskero) version and VSCode version used :

  • Stack: Version 1.4.0, Git revision e714f1dd3fade19496d91bd6a017e435a96a6bcd (4640 commits) x86_64 hpack-0.17.0
  • Ghc: 8.0.2
  • Intero: 0.1.20
  • Haskero: 1.3.1

• Steps to reproduce:

As my code is not open source at the moment and I have no clue what causes this behavior I have not made the effort to make a live example of the bug that I can distribute.

I found an error that might be related to this:

Initializing Haskero...
Spawning process 'stack' with command 'stack ghci --with-ghc intero "--ghci-options=-ignore-dot-ghci -Wall" --no-build --no-load'
Haskero initialization done.
[Error - 3:21:06 PM] Request textDocument/rename failed.
  Message: Request textDocument/rename failed with message: Cannot read property 'uri' of null
  Code: -32603 

changed the description

Hi, maybe the module is not loaded in the stack default targets.

You can change loaded targets by clicking in the button at the bottom right default target.

let me know if it solves your issue.

added Needs more info label

Changing the target does not seem to do anything. Anything other I can try to debug the problem?

The error message you linked is related to the rename feature, i guess it's another issue and is not about this one ?

Did you tried the All targets option in the checkbox list ?

I think you are right. The reason I posted the error message was just that it is the first time I have seen any output from the plugin, and it said it had an error. I tried the All targets option, and pressed "Verify" after I had chosen it. Did not make any difference.

Is there anything I can do to find more info, eg. is there a way to run the plugin with debug output or similar?

The error message that @molysgaard added 5 days ago looks the same as the one I have reported just a few minutes ago in issue #59.

When I run into that bug, I sometimes need to restart vscode because intero seems to be in some bogus state.