Kconfig and DTS extension not working

Hi all, I'm using nRF Kconfig and DeviceTree extension in VSCode. When I try to activate context, dropdown menu doesn't offer any options. Are there any additional configuration steps necessary for these extensions to work? I've used trond-snekvik extensions some time ago and that worked out of the box

Also when trying to add build folder with nRF Kconfig: Kconfig: Add build folder from command palette I get message build does not appear to be a valid build directory.

Note that I'm not using main extension, only these 2. I just want to be able to autocomplete Kconfig and follows nodes in DTS like I did with trond-snekvik extensions.