If the NSP was created improperly, you can use a tool like to pack the files together correctly.
If your console doesn't have the latest signature patches, it won't be able to "read" or verify the NCA files within the NSP, leading the installer to think they aren't there. the nsp file is missing a programtype nca fixed
Or simply:
. Ensure your keys are dumped from a console with a firmware version equal to or higher than the game's requirements. Redownload or Redump If the NSP was created improperly, you can
: Identify the base game; updates usually have a higher version number in brackets, while the base game is almost always [v0] . If the NSP was created improperly