hactool --keyset=/full/path/to/prod.keys file.nca
The primary reason for this error is the absence of a correctly named and placed key file. By default, hactool looks for a file named "prod.keys" or "keys.dat" in a specific directory—usually within the user's home folder or the same folder where the executable resides. If the file is missing, named incorrectly, or located in the wrong directory, the program fails immediately. Because these keys are copyrighted material belonging to Nintendo, they are not bundled with the hactool software for legal reasons. Users are expected to provide their own keys, typically dumped from their own hardware using homebrew tools like Lockpick_RCM. hactool prodkeys does not exist top
In the realm of Nintendo enthusiasts and homebrew developers, a tool named Hactool has gained significant attention. Created by talented individuals, Hactool is designed to manipulate and extract data from Nintendo's Switch console. One of its key features is the ability to work with prodkeys, essential components used for decrypting and verifying the authenticity of Switch firmware and software. hactool --keyset=/full/path/to/prod
hactool automatically looks for a file named prod.keys (or sometimes keys.txt ) in a specific user folder. Moving your keys here is the most permanent fix: Because these keys are copyrighted material belonging to
Can't extract NCA file from .nca folder · Issue #90 - GitHub
Here is how to fix the pathing issues:
Nintendo regularly updates the Switch’s firmware. When they do, new cryptographic keys are introduced. If your prod.keys file is from firmware 10.0.0, but you are trying to open a game that requires firmware 16.0.0 keys, hactool may either fail silently or throw the "does not exist" error (because it looks for a specific key inside the file and cannot find it).