It sounds like you're encountering a specific error when trying to run or unpack an NSP file (Nintendo Submission Package) for a Switch game or application, where the system reports that a ProgramType NCA is missing — specifically the one marked hot (likely referring to a "ProgramType 0" or a particular NCA section required for execution).
: If you extracted the NSP from a split archive, users have reported that using the nsp file is missing a programtype nca hot
If you are a developer encountering this while building tools (referenced by Develop Paper): It sounds like you're encountering a specific error
The Fix: Always update your Atmosphere, Hekate, and Sigpatches to the latest versions. Use the sigpatch-updater homebrew app or manually download the latest pack. Download SAK from GBAtemp or its official GitHub
[Base][Update][DLC]Alternative with NUT server:
Run nut (the server backend for Tinfoil). Connect via USB. The console log will explicitly print: [ERROR]: NCA with Type program not found inside NSP. This confirms the diagnostic.