How to solve " 'stdio.h' file not found" message in editor?

[DustyOldRowe]

Summary

I decided to try out Helix recently as my code editor for C, I installed, clangd and LLVM, all the things you need, but when I write "<stdio.h>" I'm shown a message in the editor that says " 'stdio.h' file not found", I searched for solutions, generated the compile_commands.json file and still didn't solve my issue and I don't know what to do anymore.

Enviroment Variables

Just in case these might be useful or in case I'm missing something

User Path

System Path

Reproduction Steps

All I did was Install Helix, Clangd and LLVM and generate compile_commands.json and such with CMake.

Helix log

helix.log

Platform

Windows 11

Terminal Emulator

I'm using powershell 7, but the same thing is present in CMD.

Installation Method

winget install Helix.Helix

Helix Version

helix 24.7 (079f544)