Hi,
The error I'm having is the following
Error making temporary directory: 1
Memory allocation failure.
Unable to stage kext (kext.kext) to secure location.
But I managed to solve it with this solution:
Based on the temporary directory error, can you check the permissions and flags for the following:
`/private/var/db/KernelExtensionManagement` should be 0755 with the "restricted" flag set, and the `com.apple.rootless` attribute set to `KernelExtensionManagement` (you can check the value of the attribute with `xattr -l`)
`/private/var/db/KernelExtensionManagement/Staging` should be 0755 with the "restricted" flag set.
Full answer can be found in this Github Issue - https://github.com/pqrs-org/Karabiner-Elements/issues/2373