configuration file log4js.json does not contain a valid configuration

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Assessment

Difficulty
1/5
Estimated time
Under an hour
Newbie friendliness
62/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Stale
Tech stack
javascript, node.js
Domain
backend

Research direction

Inspect config/log4js.json and compare it with the valid configuration example in the issue. Update the sample so log4js can load it without the reported TypeError, then verify that the example application accepts the configuration.

Written by the indexing model from the issue text.

Description

When using the sample configuration file config/log4js.json log4js is unable to load this configuration:

 "appenderList.forEach is not a function" (TypeError: appenderList.forEach is not a function
    at configureAppenders (node_modules\log4js\lib\log4js.js:248:18)
    at configureOnceOff (node_modules\log4js\lib\log4js.js:308:7)
    at Object.configure (node_modules\log4js\lib\log4js.js:371:3)

A valid configuration file looks more like this:

{
    "appenders": [
      {
        "type": "dateFile",
        "filename": "log/access.log",
        "pattern": "-yyyy-MM-dd",
        "category": "http"
      },
      {
        "type": "file",
        "filename": "log/app.log",
        "maxLogSize": 10485760,
        "numBackups": 3
      }
    ]
  }

Dominant language
JavaScript
Stars
141
Forks
112
PR merge metrics
No merged PRs in 30d

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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