I don’t understand what the problem is. I was editing my configuration file and may have accidentally deleted? or added? something that is now giving me an error. I tried both putting a colon, and when that didn’t work a semicolon after the curly bracket at the end of the file, as I think the error is telling me. Neither worked. Following is the bottom of the error. The whole error is quite long.
929| isFunction = f: builtins.isFunction f ||
| ^
930| (f ? __functor && isFunction (f.__functor f));
error: syntax error, unexpected end of file, expecting ';'
at /etc/nixos/configuration.nix:212:2:
211| };
212| }
| ^
213|