Error: filter not found: toc (via Template render error)

[hegedusgergely]

Environment

Node version: 19.8.1
OS/version: macOS 13.4

Eleventy

Eleventy version: 2.0.1
Template engine: njk
Sample input file: what does it mean?

Plugin

Plugin module version: 1.1.5
Plugin settings object (if used): tags: ['h2', 'h3'], wrapper: 'div'
Plugin use in template:

{% if content | toc %}
  <aside class="md:sticky md:top-10 p-4 bg-rose-50 rounded-xl">
      {{ content | toc | safe }}
  </aside>
{% endif %}

Description of the issue

Followed through the instructions as closely as I could but on build 11ty throws an error.

I was able to fix it with some trial and error (I'm no developer) but it sure feels like a hack.

In .eleventy.js added globalOpts to module.export and copy pasted the filter from this repo's .eleventy.js like this:

module.exports = function (eleventyConfig, globalOpts) {
    globalOpts = globalOpts || {}
    eleventyConfig.namespace(globalOpts, () => {
        eleventyConfig.addFilter('toc', (content, localOpts) => {
        return buildTOC(content, parseOptions(localOpts, globalOpts))
        })
    });
}

I have `markdown-it-anchor' installed and working.

Desired output

I expected to see a list of links in the <aside> of the layout.

Actual output

[11ty] 1. Having trouble writing to "_site/blog/2020-review-koltozes-az-elso-covid-19-hullam-kellos-kozepen/index.html" from "./blog/2020-review-koltozes-az-elso-covid-19-hullam-kellos-kozepen.md" (via EleventyTemplateError)
[11ty] 2. (./_includes/post-layout.njk)
[11ty]   Error: filter not found: toc (via Template render error)
[11ty]
[11ty] Original error stack trace: Template render error: (./_includes/post-layout.njk)
[11ty]   Error: filter not found: toc
[11ty]     at Object._prettifyError (/opt/homebrew/lib/node_modules/@11ty/eleventy/node_modules/nunjucks/src/lib.js:32:11)
[11ty]     at /opt/homebrew/lib/node_modules/@11ty/eleventy/node_modules/nunjucks/src/environment.js:464:19
[11ty]     at Template.root [as rootRenderFunc] (eval at _compile (/opt/homebrew/lib/node_modules/@11ty/eleventy/node_modules/nunjucks/src/environment.js:527:18), <anonymous>:32:3)
[11ty]     at Template.render (/opt/homebrew/lib/node_modules/@11ty/eleventy/node_modules/nunjucks/src/environment.js:454:10)
[11ty]     at /opt/homebrew/lib/node_modules/@11ty/eleventy/src/Engines/Nunjucks.js:411:14
[11ty]     at new Promise (<anonymous>)
[11ty]     at /opt/homebrew/lib/node_modules/@11ty/eleventy/src/Engines/Nunjucks.js:410:14
[11ty]     at TemplateLayout.render (/opt/homebrew/lib/node_modules/@11ty/eleventy/src/TemplateLayout.js:236:31)
[11ty]     at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
[11ty]     at async Template.renderPageEntry (/opt/homebrew/lib/node_modules/@11ty/eleventy/src/Template.js:793:17)

[smirs]

I have the same issue, thanks for posting