Issue with nix-channel

Hey guys!

I am having a weird issue this eveing! I have no clue how to fix it and how it got to this!

▶ nix-channel --update                                                        ~
unpacking channels...
error: unsupported builtin function 'unpack-channel'
error: unsupported builtin function 'unpack-channel'
builder for '/nix/store/7c0gq5qr1mfr4fbhhaccky0k8yx3mhyr-nixpkgs-19.09.2284.bf7c0f0461e.drv' failed with exit code 1
error: build of '/nix/store/7c0gq5qr1mfr4fbhhaccky0k8yx3mhyr-nixpkgs-19.09.2284.bf7c0f0461e.drv', '/nix/store/8xdga0krlbw52v64jz2zrcxqzsxl8m18-nixpkgs-unstable-20.09pre217526.9b3515eb95d.drv' failed
error: program '/nix/store/zn3p2f1kkgqrcmn2qiv571bzxqh54v22-nix-2.4pre7250_94c93437/bin/nix-env' failed with exit code 100

Thank you for the help you may provide!

Hi,

Can you post the output of nix-info?

1 Like

https://pastebin.com/kVF8UG9G

I reinstalled. It’s fixed