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01d7f19346
Closes #16182 This improves the error message Error: _assignFirst found no valid variant! which occurred when the set of outputs was not sufficient to set the various outputDev, outputBin, etc variables. Specifically, this would mean that "out" is not among the outputs, which is valid for a derivation. This changes the message to something like error: _assignFirst: could not find a non-empty variable to assign to outputDev. The following variables were all unset or empty: dev out. If you did not define an "out" output, make sure to define all the specific required outputs: define an output for one of the unset variables. While this isn't a full explanation of what stdenv can and can not do, I think it's vast improvement over the 0 bits of information that it used to provide. This at least gives a clue as to what's going on, and even suggests a fix, although probably multiple such fixes are required in an instance where someone starts with a no-out derivation from scratch (and decide to persist). |
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| functions | ||
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| languages-frameworks | ||
| old | ||
| stdenv | ||
| using | ||
| .gitignore | ||
| default.nix | ||
| functions.xml | ||
| Makefile | ||
| manpage-urls.json | ||
| manual.xml | ||
| overrides.css | ||
| preface.chapter.md | ||
| README.md | ||
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Nixpkgs/doc
This directory houses the sources files for the Nixpkgs manual.
You can find the rendered documentation for Nixpkgs unstable on nixos.org.
Docs for Nixpkgs stable are also available.
If you want to contribute to the documentation, here's how to do it.
If you're only getting started with Nix, go to nixos.org/learn.