TemplateWriter fails when accesing collections from computed data

[kotfire]

Using data.collections inside a computed data function fails with the following error:

Eleventy:Template Writing '' from './blog.njk'. +4ms
Eleventy:EleventyErrorHandler Error writing templates: +0ms
Eleventy:EleventyErrorHandler Having trouble writing template:
Eleventy:EleventyErrorHandler 
Eleventy:EleventyErrorHandler `TemplateWriterWriteError` was thrown +0ms
Eleventy:EleventyErrorHandler (error stack): TemplateWriterWriteError: Having trouble writing template: 
Eleventy:EleventyErrorHandler     at /home/user/11ty-computed-use-collections/node_modules/@11ty/eleventy/src/TemplateWriter.js:216:15 +0ms
Eleventy:EleventyErrorHandler ENOENT: no such file or directory, open ''
Eleventy:EleventyErrorHandler 
Eleventy:EleventyErrorHandler `Error` was thrown: +0ms
Eleventy:EleventyErrorHandler (error stack): Error: ENOENT: no such file or directory, open '' +0ms
Eleventy:EleventyErrorHandler Problem writing Eleventy templates: +0ms
Eleventy:EleventyErrorHandler Having trouble writing template:
Eleventy:EleventyErrorHandler 
Eleventy:EleventyErrorHandler `TemplateWriterWriteError` was thrown +0ms
Eleventy:EleventyErrorHandler (error stack): TemplateWriterWriteError: Having trouble writing template: 
Eleventy:EleventyErrorHandler     at /home/user/11ty-computed-use-collections/node_modules/@11ty/eleventy/src/TemplateWriter.js:216:15 +0ms
Eleventy:EleventyErrorHandler ENOENT: no such file or directory, open ''
Eleventy:EleventyErrorHandler 
Eleventy:EleventyErrorHandler `Error` was thrown: +0ms
Eleventy:EleventyErrorHandler (error stack): Error: ENOENT: no such file or directory, open '' +0ms

Click to show full `DEBUG=Eleventy* npx eleventy` output

  Eleventy:UserConfig Resetting EleventyConfig to initial values. +0ms
  Eleventy:Config Setting up global TemplateConfig. +0ms
  Eleventy:UserConfig Adding universal filter 'slug' +3ms
  Eleventy:UserConfig Adding universal filter 'url' +1ms
  Eleventy:UserConfig Adding universal filter 'log' +0ms
  Eleventy:UserConfig Adding universal filter 'getCollectionItem' +0ms
  Eleventy:UserConfig Adding universal filter 'getPreviousCollectionItem' +0ms
  Eleventy:UserConfig Adding universal filter 'getNextCollectionItem' +0ms
  Eleventy:TemplateConfig rootConfig { templateFormats: [ 'liquid', 'ejs', 'md', 'hbs', 'mustache', 'haml', 'pug', 'njk', 'html', 'jstl', '11ty.js' ], pathPrefix: '/', markdownTemplateEngine: 'liquid', htmlTemplateEngine: 'liquid', dataTemplateEngine: 'liquid', passthroughFileCopy: true, htmlOutputSuffix: '-o', jsDataFileSuffix: '.11tydata', keys: { package: 'pkg', layout: 'layout', permalink: 'permalink', permalinkRoot: 'permalinkBypassOutputDir', engineOverride: 'templateEngineOverride', computed: 'eleventyComputed' }, dir: { input: '.', includes: '_includes', data: '_data', output: '_site' }, filters: {}, handlebarsHelpers: {}, nunjucksFilters: {} } +0ms
  Eleventy:TemplateConfig Merging config with /home/user/11ty-computed-use-collections/.eleventy.js +1ms
  Eleventy:TemplateConfig Eleventy local project config file not found, skipping. +0ms
  Eleventy:TemplateConfig localConfig: { templateFormats: undefined, filters: {}, linters: {}, layoutAliases: {}, passthroughCopies: {}, liquidOptions: {}, liquidTags: {}, liquidFilters: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, liquidShortcodes: {}, liquidPairedShortcodes: {}, nunjucksFilters: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, nunjucksAsyncFilters: {}, nunjucksTags: {}, nunjucksAsyncShortcodes: {}, nunjucksShortcodes: {}, nunjucksAsyncPairedShortcodes: {}, nunjucksPairedShortcodes: {}, handlebarsHelpers: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, handlebarsShortcodes: {}, handlebarsPairedShortcodes: {}, javascriptFunctions: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, pugOptions: {}, ejsOptions: {}, markdownHighlighter: null, libraryOverrides: {}, dynamicPermalinks: true, useGitIgnore: true, dataDeepMerge: false, watchJavaScriptDependencies: true, additionalWatchTargets: [], browserSyncConfig: {}, chokidarConfig: {}, watchThrottleWaitTime: 0, frontMatterParsingOptions: undefined, dataExtensions: Map {}, extensionMap: Set {}, quietMode: false, events: EventEmitter { _events: [Object: null prototype] {}, _eventsCount: 0, _maxListeners: undefined } } +1ms
  Eleventy:TemplateConfig overrides: {} +1ms
  Eleventy:TemplateConfig Current configuration: { templateFormats: [ 'liquid', 'ejs', 'md', 'hbs', 'mustache', 'haml', 'pug', 'njk', 'html', 'jstl', '11ty.js' ], pathPrefix: '/', markdownTemplateEngine: 'liquid', htmlTemplateEngine: 'liquid', dataTemplateEngine: 'liquid', passthroughFileCopy: true, htmlOutputSuffix: '-o', jsDataFileSuffix: '.11tydata', keys: { package: 'pkg', layout: 'layout', permalink: 'permalink', permalinkRoot: 'permalinkBypassOutputDir', engineOverride: 'templateEngineOverride', computed: 'eleventyComputed' }, dir: { input: '.', includes: '_includes', data: '_data', output: '_site' }, filters: {}, handlebarsHelpers: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, nunjucksFilters: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, linters: {}, layoutAliases: {}, passthroughCopies: {}, liquidOptions: {}, liquidTags: {}, liquidFilters: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, liquidShortcodes: {}, liquidPairedShortcodes: {}, nunjucksAsyncFilters: {}, nunjucksTags: {}, nunjucksAsyncShortcodes: {}, nunjucksShortcodes: {}, nunjucksAsyncPairedShortcodes: {}, nunjucksPairedShortcodes: {}, handlebarsShortcodes: {}, handlebarsPairedShortcodes: {}, javascriptFunctions: { slug: [Function], url: [Function], log: [Function], getCollectionItem: [Function], getPreviousCollectionItem: [Function], getNextCollectionItem: [Function] }, pugOptions: {}, ejsOptions: {}, markdownHighlighter: null, libraryOverrides: {}, dynamicPermalinks: true, useGitIgnore: true, dataDeepMerge: false, watchJavaScriptDependencies: true, additionalWatchTargets: [], browserSyncConfig: {}, chokidarConfig: {}, watchThrottleWaitTime: 0, frontMatterParsingOptions: undefined, dataExtensions: Map {}, extensionMap: Set {}, quietMode: false, events: EventEmitter { _events: [Object: null prototype] {}, _eventsCount: 0, _maxListeners: undefined } } +1ms
  Eleventy:CommandCheck command: eleventy   +0ms
  Eleventy Eleventy warm up time (in ms) 191.78277700021863 +0ms
  Eleventy:TemplatePassthroughManager Resetting counts to 0 +0ms
  Eleventy:EleventyFiles /home/user/11ty-computed-use-collections/.gitignore ignoring: !./.vscode +0ms
  Eleventy:EleventyFiles /home/user/11ty-computed-use-collections/.gitignore ignoring: !./_site/** +0ms
  Eleventy:EleventyFiles /home/user/11ty-computed-use-collections/.gitignore ignoring: !./node_modules/** +0ms
  Eleventy Directories:
  Eleventy Input: .
  Eleventy Data: _data
  Eleventy Includes: _includes
  Eleventy Layouts: undefined
  Eleventy Output: _site
  Eleventy Template Formats: liquid,ejs,md,hbs,mustache,haml,pug,njk,html,jstl,11ty.js
  Eleventy Verbose Output: false +3ms
  Eleventy:EleventyFiles Searching for: [ './**/*.liquid', './**/*.ejs', './**/*.md', './**/*.hbs', './**/*.mustache', './**/*.haml', './**/*.pug', './**/*.njk', './**/*.html', './**/*.jstl', './**/*.11ty.js', './**/*.11ty.cjs', '!./.vscode', '!./_site/**', '!./node_modules/**', '!./_site/**', '!./_includes/**', '!./_data/**' ] +10ms
  Eleventy:TemplateWriter Found: [ './blog.njk' ] +0ms
  Eleventy:TemplatePassthroughManager TemplatePassthrough copy started. +17ms
  Eleventy:TemplatePassthroughManager `passthroughFileCopy` config paths: {} +0ms
  Eleventy:TemplatePassthroughManager `passthroughFileCopy` config normalized paths: [] +0ms
  Eleventy:TemplateData Using '.11tydata' to find data files. +0ms
  Eleventy:TemplateData getLocalDataPaths('./blog.njk'): [ './blog.11tydata.js', './blog.11tydata.cjs', './blog.11tydata.json', './blog.json' ] +0ms
  Eleventy:TemplatePassthroughManager TemplatePassthrough copy finished. Current count: 0 +1ms
  Eleventy:Template getMappedDate: using file created time for './blog.njk' of 2020-10-22T03:06:38.040Z (from 1603335998040.7812) +0ms
  Eleventy:TemplateWriter ./blog.njk added to map. +18ms
  Eleventy:TemplateMap Caching collections objects. +0ms
  Eleventy:Template First round of computed data for './blog.njk' +2ms
  Eleventy:Template Rendering permalink for './blog.njk': (((((11ty(((((permalink)))))11ty))))) becomes '(((((11ty(((((permalink)))))11ty)))))' +3ms
  Eleventy:ComputedData 'page.url' accesses [ 'permalink' ] variables +0ms
  Eleventy:Template Rendering permalink for './blog.njk': (((((11ty(((((permalink)))))11ty))))) becomes '(((((11ty(((((permalink)))))11ty)))))' +0ms
  Eleventy:ComputedData 'page.outputPath' accesses [ 'permalink' ] variables +1ms
  Eleventy:ComputedData 'permalink' accesses [ 'collections', 'collections.all' ] variables +0ms
  Eleventy:ComputedData Computed data order of execution: [] +0ms
  Eleventy:TemplateMap Collection: collections.all size: 1 +7ms
  Eleventy:TemplateMap Collection: collections.all size: 1 +0ms
  Eleventy:Template Second round of computed data for './blog.njk' +2ms
  Eleventy:ComputedData Computed data order of execution: [ 'collections.all', 'permalink', 'page.url', 'page.outputPath' ] +1ms
  Eleventy:Template Rendering permalink for './blog.njk': /blog/ becomes '/blog/' +0ms
  Eleventy:Template Rendering permalink for './blog.njk': /blog/ becomes '/blog/' +1ms
  Eleventy:TemplateWriter Template map created. +10ms
  Eleventy:Template Writing '' from './blog.njk'. +4ms
  Eleventy:EleventyErrorHandler Error writing templates: +0ms
  Eleventy:EleventyErrorHandler Having trouble writing template:
  Eleventy:EleventyErrorHandler 
  Eleventy:EleventyErrorHandler `TemplateWriterWriteError` was thrown +0ms
  Eleventy:EleventyErrorHandler (error stack): TemplateWriterWriteError: Having trouble writing template: 
  Eleventy:EleventyErrorHandler     at /home/user/11ty-computed-use-collections/node_modules/@11ty/eleventy/src/TemplateWriter.js:216:15 +0ms
  Eleventy:EleventyErrorHandler ENOENT: no such file or directory, open ''
  Eleventy:EleventyErrorHandler 
  Eleventy:EleventyErrorHandler `Error` was thrown: +0ms
  Eleventy:EleventyErrorHandler (error stack): Error: ENOENT: no such file or directory, open '' +0ms
  Eleventy:EleventyErrorHandler Problem writing Eleventy templates: +0ms
  Eleventy:EleventyErrorHandler Having trouble writing template:
  Eleventy:EleventyErrorHandler 
  Eleventy:EleventyErrorHandler `TemplateWriterWriteError` was thrown +0ms
  Eleventy:EleventyErrorHandler (error stack): TemplateWriterWriteError: Having trouble writing template: 
  Eleventy:EleventyErrorHandler     at /home/user/11ty-computed-use-collections/node_modules/@11ty/eleventy/src/TemplateWriter.js:216:15 +0ms
  Eleventy:EleventyErrorHandler ENOENT: no such file or directory, open ''
  Eleventy:EleventyErrorHandler 
  Eleventy:EleventyErrorHandler `Error` was thrown: +0ms
  Eleventy:EleventyErrorHandler (error stack): Error: ENOENT: no such file or directory, open '' +0ms
  Eleventy:Benchmark Benchmark (Aggregate): Searching the file system took 14ms (14.0%, called 2×, 6.9ms each) +0ms
  Eleventy:Benchmark Benchmark (Aggregate): Template Read took 1ms (0.8%, called 2×, 0.4ms each) +0ms
  Eleventy:Benchmark Benchmark (Aggregate): Template Render took 4ms (4.5%, called 5×, 0.9ms each) +0ms
Wrote 0 files in 0.05 seconds (v0.11.0)
  Eleventy Finished writing templates. +47ms
  Eleventy 
  Eleventy Getting frustrated? Have a suggestion/feature request/feedback?
  Eleventy I want to hear it! Open an issue: https://github.com/11ty/eleventy/issues/new +0ms


Start time: (2020-10-22 03:06:49 UTC) [treshold=1%]
 #  module                                                                       time  %
 1  ./src/EleventyErrorHandler (node_mod...eventy/src/EleventyErrorHandler.js)    3ms  ▇▇ 2%
 2  parse-filepath (node_modules/parse-filepath/index.js)                         2ms  ▇ 1%
 3  ./TemplatePath (node_modules/@11ty/eleventy/src/TemplatePath.js)              3ms  ▇▇ 2%
 4  graceful-fs (node_modules/graceful-fs/graceful-fs.js)                         2ms  ▇ 1%
 5  ./fs (node_modules/fs-extra/lib/fs/index.js)                                  4ms  ▇▇ 2%
 6  ./copy-sync (node_modules/fs-extra/lib/copy-sync/copy-sync.js)                2ms  ▇ 1%
 7  ./copy-sync (node_modules/fs-extra/lib/copy-sync/index.js)                    2ms  ▇ 1%
 8  ./empty (node_modules/fs-extra/lib/empty/index.js)                            2ms  ▇ 1%
 9  ./json (node_modules/fs-extra/lib/json/index.js)                              2ms  ▇ 1%
10  fs-extra (node_modules/fs-extra/lib/index.js)                                14ms  ▇▇▇▇▇▇ 7%
11  braces (node_modules/braces/index.js)                                         3ms  ▇▇ 2%
12  ./lib/picomatch (node_modules/picomatch/lib/picomatch.js)                     2ms  ▇ 1%
13  picomatch (node_modules/picomatch/index.js)                                   2ms  ▇ 1%
14  micromatch (node_modules/micromatch/index.js)                                 5ms  ▇▇ 3%
15  ./pattern (node_modules/fast-glob/out/utils/pattern.js)                       6ms  ▇▇▇ 3%
16  ../utils (node_modules/fast-glob/out/utils/index.js)                          8ms  ▇▇▇▇ 4%
17  ./managers/tasks (node_modules/fast-glob/out/managers/tasks.js)               9ms  ▇▇▇▇ 5%
18  @nodelib/fs.scandir (node_modules/@nodelib/fs.scandir/out/index.js)           2ms  ▇ 1%
19  ../readers/async (node_modules/@nodelib/fs.walk/out/readers/async.js)         4ms  ▇▇ 2%
20  ./providers/async (node_modules/@nodelib/fs.walk/out/providers/async.js)      4ms  ▇▇ 2%
21  @nodelib/fs.walk (node_modules/@nodelib/fs.walk/out/index.js)                 4ms  ▇▇ 2%
22  ../readers/stream (node_modules/fast-glob/out/readers/stream.js)              6ms  ▇▇▇ 3%
23  ./providers/async (node_modules/fast-glob/out/providers/async.js)             7ms  ▇▇▇ 4%
24  ./settings (node_modules/fast-glob/out/settings.js)                          19ms  ▇▇▇▇▇▇▇▇ 10%
25  fast-glob (node_modules/fast-glob/out/index.js)                              36ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 19%
26  ./_baseIsNative (node_modules/lodash/_baseIsNative.js)                        2ms  ▇ 1%
27  ./_getNative (node_modules/lodash/_getNative.js)                              2ms  ▇ 1%
28  ./_defineProperty (node_modules/lodash/_defineProperty.js)                    2ms  ▇ 1%
29  ./_baseAssignValue (node_modules/lodash/_baseAssignValue.js)                  2ms  ▇ 1%
30  ./_assignValue (node_modules/lodash/_assignValue.js)                          2ms  ▇ 1%
31  ./_mapCacheClear (node_modules/lodash/_mapCacheClear.js)                      3ms  ▇▇ 2%
32  ./_MapCache (node_modules/lodash/_MapCache.js)                                3ms  ▇▇ 2%
33  ./memoize (node_modules/lodash/memoize.js)                                    3ms  ▇▇ 2%
34  ./_memoizeCapped (node_modules/lodash/_memoizeCapped.js)                      3ms  ▇▇ 2%
35  ./_stringToPath (node_modules/lodash/_stringToPath.js)                        3ms  ▇▇ 2%
36  ./toString (node_modules/lodash/toString.js)                                  2ms  ▇ 1%
37  ./_castPath (node_modules/lodash/_castPath.js)                                6ms  ▇▇▇ 3%
38  ./_baseSet (node_modules/lodash/_baseSet.js)                                  9ms  ▇▇▇▇ 5%
39  lodash/set (node_modules/lodash/set.js)                                       9ms  ▇▇▇▇ 5%
40  ./_baseUniq (node_modules/lodash/_baseUniq.js)                                2ms  ▇ 1%
41  lodash/uniq (node_modules/lodash/uniq.js)                                     2ms  ▇ 1%
42  ./_baseMergeDeep (node_modules/lodash/_baseMergeDeep.js)                      4ms  ▇▇ 2%
43  ./_baseMerge (node_modules/lodash/_baseMerge.js)                              5ms  ▇▇ 3%
44  ./_createAssigner (node_modules/lodash/_createAssigner.js)                    2ms  ▇ 1%
45  lodash/merge (node_modules/lodash/merge.js)                                   7ms  ▇▇▇ 4%
46  semver (node_modules/semver/index.js)                                         7ms  ▇▇▇ 4%
47  luxon (node_modules/luxon/build/node/luxon.js)                                5ms  ▇▇ 3%
48  ./UserConfig (node_modules/@11ty/eleventy/src/UserConfig.js)                 15ms  ▇▇▇▇▇▇ 8%
49  ./EleventyConfig (node_modules/@11ty/eleventy/src/EleventyConfig.js)         16ms  ▇▇▇▇▇▇▇ 8%
50  ./TemplateConfig (node_modules/@11ty/eleventy/src/TemplateConfig.js)         24ms  ▇▇▇▇▇▇▇▇▇▇ 12%
51  ./defaultConfig.js (node_modules/@11ty/eleventy/src/defaultConfig.js)         2ms  ▇ 1%
52  ./Config (node_modules/@11ty/eleventy/src/Config.js)                         31ms  ▇▇▇▇▇▇▇▇▇▇▇▇ 16%
53  ./TemplateEngineManager (node_module...venty/src/TemplateEngineManager.js)   31ms  ▇▇▇▇▇▇▇▇▇▇▇▇ 16%
54  ./EleventyExtensionMap (node_modules...eventy/src/EleventyExtensionMap.js)   31ms  ▇▇▇▇▇▇▇▇▇▇▇▇ 16%
55  ./TemplateRender (node_modules/@11ty/eleventy/src/TemplateRender.js)         31ms  ▇▇▇▇▇▇▇▇▇▇▇▇ 16%
56  ./TemplateData (node_modules/@11ty/eleventy/src/TemplateData.js)             94ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 49%
57  ./core (node_modules/js-yaml/lib/js-yaml/schema/core.js)                      2ms  ▇ 1%
58  ./schema/default_safe (node_modules/...lib/js-yaml/schema/default_safe.js)    3ms  ▇▇ 2%
59  esprima (node_modules/esprima/dist/esprima.js)                                8ms  ▇▇▇▇ 4%
60  ../type/js/function (node_modules/js...ml/lib/js-yaml/type/js/function.js)    8ms  ▇▇▇▇ 4%
61  ./schema/default_full (node_modules/...lib/js-yaml/schema/default_full.js)    9ms  ▇▇▇▇ 5%
62  ./js-yaml/loader (node_modules/js-yaml/lib/js-yaml/loader.js)                14ms  ▇▇▇▇▇▇ 7%
63  ./lib/js-yaml.js (node_modules/js-yaml/lib/js-yaml.js)                       16ms  ▇▇▇▇▇▇▇ 8%
64  js-yaml (node_modules/js-yaml/index.js)                                      16ms  ▇▇▇▇▇▇▇ 8%
65  ./engines (node_modules/gray-matter/lib/engines.js)                          17ms  ▇▇▇▇▇▇▇ 9%
66  ./lib/defaults (node_modules/gray-matter/lib/defaults.js)                    17ms  ▇▇▇▇▇▇▇ 9%
67  gray-matter (node_modules/gray-matter/index.js)                              19ms  ▇▇▇▇▇▇▇▇ 10%
68  ./TemplateContent (node_modules/@11ty/eleventy/src/TemplateContent.js)       20ms  ▇▇▇▇▇▇▇▇ 10%
69  ./Template (node_modules/@11ty/eleventy/src/Template.js)                     24ms  ▇▇▇▇▇▇▇▇▇▇ 12%
70  multimatch (node_modules/multimatch/index.js)                                 2ms  ▇ 1%
71  ./TemplateCollection (node_modules/@...eleventy/src/TemplateCollection.js)    2ms  ▇ 1%
72  ./TemplateMap (node_modules/@11ty/eleventy/src/TemplateMap.js)                3ms  ▇▇ 2%
73  glob (node_modules/glob/glob.js)                                              3ms  ▇▇ 2%
74  globby (node_modules/globby/index.js)                                         5ms  ▇▇ 3%
75  del (node_modules/del/index.js)                                               7ms  ▇▇▇ 4%
76  ./lib/copy (node_modules/recursive-copy/lib/copy.js)                         10ms  ▇▇▇▇ 5%
77  recursive-copy (node_modules/recursive-copy/index.js)                        10ms  ▇▇▇▇ 5%
78  ./TemplatePassthrough (node_modules/...leventy/src/TemplatePassthrough.js)   10ms  ▇▇▇▇ 5%
79  ./TemplatePassthroughManager (node_m.../src/TemplatePassthroughManager.js)   10ms  ▇▇▇▇ 5%
80  ./EleventyFiles (node_modules/@11ty/eleventy/src/EleventyFiles.js)           11ms  ▇▇▇▇▇ 6%
81  ./TemplateWriter (node_modules/@11ty/eleventy/src/TemplateWriter.js)         38ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 20%
82  ./src/Eleventy (node_modules/@11ty/eleventy/src/Eleventy.js)                137ms  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 71%
83  ./nodes (node_modules/nunjucks/src/nodes.js)                                  2ms  ▇ 1%
84  ./parser (node_modules/nunjucks/src/parser.js)                                3ms  ▇▇ 2%
85  ./compiler (node_modules/nunjucks/src/compiler.js)                            5ms  ▇▇ 3%
86  ./src/environment (node_modules/nunjucks/src/environment.js)                  8ms  ▇▇▇▇ 4%
87  nunjucks (node_modules/nunjucks/index.js)                                    10ms  ▇▇▇▇ 5%
88  ./Engines/Nunjucks (node_modules/@11ty/eleventy/src/Engines/Nunjucks.js)     10ms  ▇▇▇▇ 5%
Total require(): 1077
Total time: 193ms

To Reproduce
Access data.collections from a computed property in a 11tydata.js file

module.exports = {
    eleventyComputed: {
        permalink: data => {
            data.collections.all;

            return "/blog/";
        }
    }
};

I've created a repository with the minimum data to reproduce the issue: https://github.com/kotfire/11ty-computed-use-collections

Expected behavior
Maybe I'm not using this as I'm supposed to.

Computed data function works as expected if the collections are not used.

module.exports = {
    eleventyComputed: {
        permalink: data => {
-           data.collections.all;

            return "/blog/";
        }
    }
};

Environment:

• OS and Version: Linux
• Eleventy Version: 0.11.0

[binyamin]

@kotfire Sorry for the wait. Thanks for reporting, and for providing a test case.
FWIW, I can confirm that this is a problem.

[zachleat]

Want to log that this might be related to (fixed with) #1956