"ERROR ... render of "taxonomy" failed ... can't evaluate field Ancestors in type *hugolib.pageState"

[kirisakow]

1. I followed the tutorial in this project's README file.
2. Then I ran hugo server --debug and here's what I got in return:

$ hugo server --debug 
WARN 2023/04/08 21:33:44 Module "github.com/willfaught/paige" is not compatible with this Hugo version; run "hugo mod graph" for more information.
Start building sites … 
hugo v0.102.3+extended linux/amd64 BuildDate=2022-09-13T20:32:22Z VendorInfo=ubuntu:0.102.3-1ubuntu1
INFO 2023/04/08 21:33:44 syncing static files to /
DEBUG 2023/04/08 21:33:44 Render page My New Hugo Site to "/index.html"
DEBUG 2023/04/08 21:33:44 Render page Categories to "/categories/index.html"
DEBUG 2023/04/08 21:33:44 Render page Tags to "/tags/index.html"
ERROR 2023/04/08 21:33:44 render of "taxonomy" failed: "/tmp/hugo_cache/modules/filecache/modules/pkg/mod/github.com/willfaught/paige@v0.56.2/layouts/_default/baseof.html:14:23": execute of template failed: template: _default/taxonomy.html:14:23: executing "_default/taxonomy.html" at <partial "paige/header.html" $page>: error calling partial: "/tmp/hugo_cache/modules/filecache/modules/pkg/mod/github.com/willfaught/paige@v0.56.2/layouts/partials/paige/header.html:3:14": execute of template failed: template: partials/paige/header.html:3:14: executing "partials/paige/header.html" at <$page.Ancestors>: can't evaluate field Ancestors in type *hugolib.pageState
ERROR 2023/04/08 21:33:44 render of "taxonomy" failed: "/tmp/hugo_cache/modules/filecache/modules/pkg/mod/github.com/willfaught/paige@v0.56.2/layouts/_default/baseof.html:14:23": execute of template failed: template: _default/taxonomy.html:14:23: executing "_default/taxonomy.html" at <partial "paige/header.html" $page>: error calling partial: "/tmp/hugo_cache/modules/filecache/modules/pkg/mod/github.com/willfaught/paige@v0.56.2/layouts/partials/paige/header.html:3:14": execute of template failed: template: partials/paige/header.html:3:14: executing "partials/paige/header.html" at <$page.Ancestors>: can't evaluate field Ancestors in type *hugolib.pageState
Error: Error building site: failed to render pages: render of "home" failed: "/tmp/hugo_cache/modules/filecache/modules/pkg/mod/github.com/willfaught/paige@v0.56.2/layouts/_default/baseof.html:14:23": execute of template failed: template: _default/home.html:14:23: executing "_default/home.html" at <partial "paige/header.html" $page>: error calling partial: "/tmp/hugo_cache/modules/filecache/modules/pkg/mod/github.com/willfaught/paige@v0.56.2/layouts/partials/paige/header.html:3:14": execute of template failed: template: partials/paige/header.html:3:14: executing "partials/paige/header.html" at <$page.Ancestors>: can't evaluate field Ancestors in type *hugolib.pageState
Built in 475 ms

3. Then, as recommended, I ran hugo mod graph and here's what I got in return:

$ hugo mod graph 
WARN 2023/04/08 21:34:14 Module "github.com/willfaught/paige" is not compatible with this Hugo version; run "hugo mod graph" for more information.
github.com/kirisakow/XXXXXXXXXXXX github.com/willfaught/paige@v0.56.2

[willfaught]

The issue seems to be this:

WARN 2023/04/08 21:33:44 Module "github.com/willfaught/paige" is not compatible with this Hugo version; run "hugo mod graph" for more information.

You need Hugo v0.111.3.

What does hugo env print?

[kirisakow]

$ hugo env 
hugo v0.102.3+extended linux/amd64 BuildDate=2022-09-13T20:32:22Z VendorInfo=ubuntu:0.102.3-1ubuntu1
GOOS="linux"
GOARCH="amd64"
GOVERSION="go1.19"

[willfaught]

Someone else encountered the Ancestors error:

#23

Their issue seemed to be an invalid site, somehow. When they started a new site from scratch, the issue went away. Do you see this error for a new site?

[willfaught]

I've added a note about the minimum Hugo version: 36c123f

[willfaught]

It looks like you need to upgrade Hugo to the latest version. You also need to install dart-sass-embedded. I'm not sure either of those things are related to the Ancestors error, though.

[kirisakow]

Do you see this error for a new site?

It is a new (blank) website I just created with this tutorial of yours.

[kirisakow]

The issue seems to be this:

WARN 2023/04/08 21:33:44 Module "github.com/willfaught/paige" is not compatible with this Hugo version; run "hugo mod graph" for more information.

You need Hugo v0.111.3.

Indeed, right now I have

$ apt list --installed | grep hugo

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

hugo/kinetic,now 0.102.3-1ubuntu1 amd64 [installed]

Fortunately, snap has a more up-to-date version:

$ snap find hugo
Name            Version  Publisher     Notes  Summary
hugo            0.111.3  hugo-authors  -      Fast and Flexible Static Site Generator

[willfaught]

Please report back when you've tried it with Hugo 0.111.3 and dart-sass-embedded.

I don't see that error on macOS using the setup instructions:

~
❯ hugo new site yourproject
Congratulations! Your new Hugo site is created in /Users/Will/yourproject.

Just a few more steps and you're ready to go:

1. Download a theme into the same-named folder.
   Choose a theme from https://themes.gohugo.io/ or
   create your own with the "hugo new theme <THEMENAME>" command.
2. Perhaps you want to add some content. You can add single files
   with "hugo new <SECTIONNAME>/<FILENAME>.<FORMAT>".
3. Start the built-in live server via "hugo server".

Visit https://gohugo.io/ for quickstart guide and full documentation.

~
❯ cd yourproject/

~/yourproject
❯ hugo new yourpost.md
Content "/Users/Will/yourproject/content/yourpost.md" created

~/yourproject
❯ hugo mod init github.com/youraccount/yourproject
go: creating new go.mod: module github.com/youraccount/yourproject
go: to add module requirements and sums:
	go mod tidy

~/yourproject
❯ hugo mod get github.com/willfaught/paige
go: downloading github.com/willfaught/paige v0.56.2
go: added github.com/willfaught/paige v0.56.2

~/yourproject
❯ bash

The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s /bin/zsh`.
For more details, please visit https://support.apple.com/kb/HT208050.
bash-3.2$ cat >>config.toml <<EOF
> [[module.imports]]
> path = "github.com/willfaught/paige"
> EOF
bash-3.2$ exit

~/yourproject
❯ hugo server -D
port 1313 already in use, attempting to use an available port
Start building sites … 
hugo v0.111.3+extended darwin/amd64 BuildDate=unknown

                   | EN  
-------------------+-----
  Pages            |  8  
  Paginator pages  |  0  
  Non-page files   |  0  
  Static files     | 95  
  Processed images |  0  
  Aliases          |  1  
  Sitemaps         |  1  
  Cleaned          |  0  

Built in 988 ms
Watching for changes in /Users/Will/yourproject/{archetypes,assets,content,data,layouts,static}
Watching for config changes in /Users/Will/yourproject/config.toml, /Users/Will/yourproject/go.mod
Environment: "development"
Serving pages from memory
Running in Fast Render Mode. For full rebuilds on change: hugo server --disableFastRender
Web Server is available at http://localhost:54564/ (bind address 127.0.0.1)
Press Ctrl+C to stop

Can you show me your commands for creating the site, and the contents of your config.toml?

[willfaught]

Ah, the Ancestors field was added in Hugo 0.110.0. Upgrading should fix this.

[kirisakow]

Sorry, I was busy coping with a well-known Snap's shortcoming, finding a workaround, then raising awareness about that among Hugo project maintainers: gohugoio/hugoDocs#2049

[willfaught]

No worries. Thanks for reporting the Snap issue to the Hugo project!

[willfaught]

Since the cause is now understood, and the fix is to upgrade Hugo, I'll close this.