The keychain has an existing password for a non-existing "Nix Store" volume

[Yash-Garg]

Error

Error: 
   0: Planner error
   1: Error executing action
   2: Action `encrypt_apfs_volume` errored
   3: The keychain has an existing password for a non-existing "Nix Store" volume on disk `disk3`, consider removing the password with `sudo security delete-generic-password  -a "Nix Store" -s "Nix Store" -l "disk3 encryption password" -D "Encrypted volume password"`. Note that it's possible to have several passwords stored, so you may need to run this command several times until receiving the message `The specified item could not be found in the keychain.`

Metadata

key	value
version	0.19.0
os	macos
arch	aarch64

[cole-h]

Does running the command in the error message help you proceed any further?

[Yash-Garg]

@cole-h I completely reinstalled it on my Mac including resetting MacOS, since it was not working. Turned off filevault -> reinstalled and enabled again, seems to work now.

The error above came even though the Nix Store APFS volume was already deleted.

[cole-h]

Right, the issue is not that the volume itself existed, but that a password for the non-existent volume (identified by the name and being on the same disk, I believe) existed in the keychain. We don't want to just go ahead and delete it in case you need it for some reason, so we suggest a command for you to run in that case.