VS Code record-dot-preprocessor error

[technoY2K]

Not sure if this is the appropriate place to submit this error. I tried searching around with no luck so I figured I start here. In VS Code I am getting the following error:

record-dot-preprocessor: runInteractiveProcess: posix_spawnp: illegal operation (Inappropriate ioctl for device)

Everything builds and works fine however, I don't get none of the language server benefits within the file because of this error.

[ndmitchell]

Is record-dot-preprocessor on the $PATH? From what I can tell, it looks like an issue with Haskell Language Server, but putting it on $PATH probably solves the issue most easily. Otherwise you might need to add it as a build tool, with cabal.