Hi! Nikita Karetnikov <[email protected]> skribis:
> scheme@(guile-user)> (nixpkgs-derivation "hello") > ERROR: In procedure open-process: > ERROR: Wrong type (expecting string): #f > > Entering a new prompt. Type `,bt' for a backtrace or `,q' to continue. > scheme@(guile-user) [1]> Can you type ,locals at that point, to display local variables? Most likely the problem is that (%nixpkgs-directory) is #f. To fix that, you need to either run configure --with-nixpkgs=/path/to/nixpkgs, or set the ‘NIXPKGS’ environment variable. HTH, Ludo’.
