Mintplex-Labs/anything-llm
1
0
Fork 0
mirror of https://github.com/Mintplex-Labs/anything-llm.git synced 2026-07-19 14:13:35 -04:00
Code Issues 328 Packages Projects Releases 10 Wiki Activity

[GH-ISSUE #4816] [BUG]: Collector web scraping fails with ERR_REQUIRE_ESM in string-width/cliui (Puppeteer fallback triggered) #3034

New Issue
Closed
opened 2026-02-22 18:32:21 -05:00 by yindo · 2 comments
yindo commented 2026-02-22 18:32:21 -05:00
Owner
Copy Link
Copy Source

Originally created by @javaheripur on GitHub (Dec 31, 2025).
Original GitHub issue: https://github.com/Mintplex-Labs/anything-llm/issues/4816

How are you running AnythingLLM?

Docker (local)

What happened?

When attempting to scrape a webpage (tested with https://example.com) via the AnythingLLM UI (Documents → Add document → Fetch website), the collector service fails to use Puppeteer for content extraction and falls back to a basic fetch method.
The failure occurs in the Puppeteer-based loader (PuppeteerWebBaseLoader from LangChain.js), which is invoked during the scraping process (getPageContent → scrapeGenericUrl → processLink).
Instead of successfully launching a headless browser or loading the page, the process crashes with the following root error:

Error [ERR_REQUIRE_ESM]: require() of ES Module /app/collector/node_modules/string-width/index.js from /app/collector/node_modules/cliui/build/index.cjs not supported.
Instead change the require of index.js in /app/collector/node_modules/cliui/build/index.cjs to a dynamic import() which is available in all CommonJS modules.
    at Object.<anonymous> (/app/collector/node_modules/cliui/build/index.cjs:291:21)
    at Object.<anonymous> (/app/collector/node_modules/yargs/build/index.cjs:1:60678)
    at async PuppeteerWebBaseLoader.imports (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:123:32)
    at async PuppeteerWebBaseLoader._scrape (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:41:28)
    at async PuppeteerWebBaseLoader.load (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:74:22)
    at async getPageContent (/app/collector/processLink/convert/generic.js:210:18)
    ...

This error happens because:

cliui (a CommonJS module, pulled in via yargs) attempts a synchronous require('string-width').
A version of string-width ≥5.0.0 (ESM-only) has been resolved in the dependency tree.
CommonJS require() cannot load pure ESM modules, triggering ERR_REQUIRE_ESM.

As a direct result of this crash during the dynamic import/loading phase of Puppeteer dependencies, the PuppeteerWebBaseLoader.imports check fails. The AnythingLLM collector code then logs the misleading fallback message:

[collector] error: getPageContent failed to be fetched by puppeteer - falling back to fetch! Error: Please install puppeteer as a dependency with, e.g. `yarn add puppeteer`

Puppeteer itself is present in the official mintplexlabs/anythingllm:latest Docker image (bundled during build), but the loader never reaches browser launch due to the earlier ESM incompatibility error in the dependency chain.

Are there known steps to reproduce?

No response

Originally created by @javaheripur on GitHub (Dec 31, 2025). Original GitHub issue: https://github.com/Mintplex-Labs/anything-llm/issues/4816 ### How are you running AnythingLLM? Docker (local) ### What happened? When attempting to scrape a webpage (tested with https://example.com) via the AnythingLLM UI (Documents → Add document → Fetch website), the collector service fails to use Puppeteer for content extraction and falls back to a basic fetch method. The failure occurs in the Puppeteer-based loader (PuppeteerWebBaseLoader from LangChain.js), which is invoked during the scraping process (getPageContent → scrapeGenericUrl → processLink). Instead of successfully launching a headless browser or loading the page, the process crashes with the following root error: ``` Error [ERR_REQUIRE_ESM]: require() of ES Module /app/collector/node_modules/string-width/index.js from /app/collector/node_modules/cliui/build/index.cjs not supported. Instead change the require of index.js in /app/collector/node_modules/cliui/build/index.cjs to a dynamic import() which is available in all CommonJS modules. at Object.<anonymous> (/app/collector/node_modules/cliui/build/index.cjs:291:21) at Object.<anonymous> (/app/collector/node_modules/yargs/build/index.cjs:1:60678) at async PuppeteerWebBaseLoader.imports (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:123:32) at async PuppeteerWebBaseLoader._scrape (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:41:28) at async PuppeteerWebBaseLoader.load (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:74:22) at async getPageContent (/app/collector/processLink/convert/generic.js:210:18) ... ``` This error happens because: cliui (a CommonJS module, pulled in via yargs) attempts a synchronous require('string-width'). A version of string-width ≥5.0.0 (ESM-only) has been resolved in the dependency tree. CommonJS require() cannot load pure ESM modules, triggering ERR_REQUIRE_ESM. As a direct result of this crash during the dynamic import/loading phase of Puppeteer dependencies, the PuppeteerWebBaseLoader.imports check fails. The AnythingLLM collector code then logs the misleading fallback message: ``` [collector] error: getPageContent failed to be fetched by puppeteer - falling back to fetch! Error: Please install puppeteer as a dependency with, e.g. `yarn add puppeteer` ``` Puppeteer itself is present in the official mintplexlabs/anythingllm:latest Docker image (bundled during build), but the loader never reaches browser launch due to the earlier ESM incompatibility error in the dependency chain. ### Are there known steps to reproduce? _No response_
yindo added the possible bug label 2026-02-22 18:32:21 -05:00
yindo closed this issue 2026-02-22 18:32:21 -05:00
yindo commented 2026-02-22 18:32:21 -05:00
Author
Owner
Copy Link
Copy Source

@speedyfoxai commented on GitHub (Jan 2, 2026):

[collector] info: Scraping 1/1: https://docs.openwebui.com
[collector] error: Error [ERR_REQUIRE_ESM]: require() of ES Module /app/collector/node_modules/string-width/index.js from /app/collector/node_modules/cliui/build/index.cjs not supported.
Instead change the require of index.js in /app/collector/node_modules/cliui/build/index.cjs to a dynamic import() which is available in all CommonJS modules.
at Object. (/app/collector/node_modules/cliui/build/index.cjs:291:21)
at Object. (/app/collector/node_modules/yargs/build/index.cjs:1:60678)
at async PuppeteerWebBaseLoader.imports (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:123:32)
at async PuppeteerWebBaseLoader._scrape (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:41:28)
at async PuppeteerWebBaseLoader.load (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:74:22)
at async getPageLinks (/app/collector/utils/extensions/WebsiteDepth/index.js:53:18)
at async discoverLinks (/app/collector/utils/extensions/WebsiteDepth/index.js:27:26)
at async websiteScraper (/app/collector/utils/extensions/WebsiteDepth/index.js:158:25)
at async /app/collector/extensions/index.js:124:29
[collector] error: Failed to scrape https://docs.openwebui.com. Error: Please install puppeteer as a dependency with, e.g. yarn add puppeteer
at PuppeteerWebBaseLoader.imports (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:128:19)
at async PuppeteerWebBaseLoader._scrape (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:41:28)
at async PuppeteerWebBaseLoader.load (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:74:22)
at async bulkScrapePages (/app/collector/utils/extensions/WebsiteDepth/index.js:102:20)
at async websiteScraper (/app/collector/utils/extensions/WebsiteDepth/index.js:164:23)
at async /app/collector/extensions/index.js:124:29

@speedyfoxai commented on GitHub (Jan 2, 2026): [collector] info: Scraping 1/1: https://docs.openwebui.com [collector] error: Error [ERR_REQUIRE_ESM]: require() of ES Module /app/collector/node_modules/string-width/index.js from /app/collector/node_modules/cliui/build/index.cjs not supported. Instead change the require of index.js in /app/collector/node_modules/cliui/build/index.cjs to a dynamic import() which is available in all CommonJS modules. at Object.<anonymous> (/app/collector/node_modules/cliui/build/index.cjs:291:21) at Object.<anonymous> (/app/collector/node_modules/yargs/build/index.cjs:1:60678) at async PuppeteerWebBaseLoader.imports (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:123:32) at async PuppeteerWebBaseLoader._scrape (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:41:28) at async PuppeteerWebBaseLoader.load (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:74:22) at async getPageLinks (/app/collector/utils/extensions/WebsiteDepth/index.js:53:18) at async discoverLinks (/app/collector/utils/extensions/WebsiteDepth/index.js:27:26) at async websiteScraper (/app/collector/utils/extensions/WebsiteDepth/index.js:158:25) at async /app/collector/extensions/index.js:124:29 [collector] error: Failed to scrape https://docs.openwebui.com. Error: Please install puppeteer as a dependency with, e.g. `yarn add puppeteer` at PuppeteerWebBaseLoader.imports (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:128:19) at async PuppeteerWebBaseLoader._scrape (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:41:28) at async PuppeteerWebBaseLoader.load (/app/collector/node_modules/langchain/dist/document_loaders/web/puppeteer.cjs:74:22) at async bulkScrapePages (/app/collector/utils/extensions/WebsiteDepth/index.js:102:20) at async websiteScraper (/app/collector/utils/extensions/WebsiteDepth/index.js:164:23) at async /app/collector/extensions/index.js:124:29
yindo commented 2026-02-22 18:32:21 -05:00
Author
Owner
Copy Link
Copy Source

@timothycarambat commented on GitHub (Jan 2, 2026):

Resolved by #4819

@timothycarambat commented on GitHub (Jan 2, 2026): Resolved by #4819
yindo changed title from [BUG]: Collector web scraping fails with ERR_REQUIRE_ESM in string-width/cliui (Puppeteer fallback triggered) to [GH-ISSUE #4816] [BUG]: Collector web scraping fails with ERR_REQUIRE_ESM in string-width/cliui (Puppeteer fallback triggered) 2026-06-05 14:49:56 -04:00
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
Desktop
Docker
Integration Request
Integration Request
OS: Linux
OS: Mobile
OS: Windows
UI/UX
blocked
bug
bug
core-team-only
documentation
duplicate
embed-widget
enhancement
feature request
github_actions
good first issue
investigating
needs info / can't replicate
possible bug
pull-request
Mirrored from GitHub Pull Request
 question
stage: specifications
wontfix
No Label possible bug
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
yindo
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: Mintplex-Labs/anything-llm#3034
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?