VS Code intellisense not finding kconfig options

[Nick_RA]

Something seems to have broken in my VSC and/or Nordic extensions. Intellisense seems to be working for code, but cannot resolve any of my custom kconfig options.

I use some boolean kconfig CONFIG_WHATEVER along with some #if defined(CONFIG_WHATEVER) to enable/disable code blocks. But everything is greyed out now and intellisense for the code within that block is also disabled. I can right-click the CONFIG_WHATEVER and "view definition" (=1 if enabled), and all code compiles exactly as it should.

Other "standard" options like CONFIG_SERIAL behave fine in the same project.

Can you give any hints where to look or how to fix please?

(AI suggested solution of adding "C_Cpp.default.configurationProvider": "nordic-semiconductor.nrf-connect" to settings.json didn't work)

NCS 3.02

VS Code version:

Version: 1.114.0 (user setup)
Commit: e7fb5e96c0730b9deb70b33781f98e2f35975036
Date: 2026-04-01T09:27:11Z
Electron: 39.8.3
ElectronBuildId: 13658728
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

[Nick_RA]

Okaaay thanks.. Yes I think I get something similar. My builds are sysbuild: if I click MYBUILD in the applications window then it doesn't work but if I click like so:

MYBUILD sysbuild <- click here not OK
|
|- myapp <- click here OK
|-mcuboot

then it works. That doesn't really explain why the copy of the project works though...?

I noticed also that I get this error in the status bar:

I may well have messed up my extensions anyway. I was experimenting disabling extensions because starting up was SLOW (>30 sec waiting). So maybe I have something wrong here?