I have just installed Kubuntu 20.04, and have just installed multi-user Nix 2.3.7. After adding “nixos-20.03” as a channel, when I try “nix-channel --update”, I get the following error:
unpacking channels... while setting up the build environment: executing '/usr/bin/bash': No such file or directory builder for '/nix/store/h6x62kwi2i9m0mr8xxzabbldggrv7ph6-nixos-20.03-20.03.2668.7c85b915892.drv' failed with exit code 1 error: build of '/nix/store/h6x62kwi2i9m0mr8xxzabbldggrv7ph6-nixos-20.03-20.03.2668.7c85b915892.drv' failed error: program '/usr/local/bin/nix-env' failed with exit code 100
I have confirmed that “/usr/bin/bash” exists and works, and I have been unable to find any help that addresses this particular issue. If anything, I have the impression that this may be a permission problem, but if so, I’m not sure what permissions I need…
Any thoughts about what may be going wrong?