Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

TypeError: Cannot read property 'value' of undefined

See original GitHub issue

What version of ESLint are you using? 2.10.0

What parser (default, Babel-ESLint, etc.) are you using? babel-eslint

Please show your full configuration:

{
  "parser": "babel-eslint",
  "extends": "airbnb",
  "env": {
    "browser": true,
    "mocha": true,
    "node": true
  },
  "rules": {
    "react/jsx-no-bind": 0,
    "react/prefer-stateless-function": 0,
    "comma-dangle": 0,
    "no-use-before-define": 0,
    "consistent-return": 0
  },
  "plugins": [
    "react"
  ]
}

What did you do? Please include the actual source code causing the issue. Just ran eslint on my project as normal

What did you expect to happen? No parser error

What actually happened? Please include the actual, raw output from ESLint. Get the following error: TypeError: Cannot read property ‘value’ of undefined

On linting this file:

module.exports = {
  'Home.Company': 'Comapny ABC'
};

Cannot read property ‘value’ of undefined TypeError: Cannot read property ‘value’ of undefined at isEnclosedInParens (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/eslint/lib/rules/no-return-assign.js:23:21) at EventEmitter.AssignmentExpression (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/eslint/lib/rules/no-return-assign.js:51:32) at emitOne (events.js:95:20) at EventEmitter.emit (events.js:182:7) at NodeEventGenerator.enterNode (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/eslint/lib/util/node-event-generator.js:40:22) at CodePathAnalyzer.enterNode (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/eslint/lib/code-path-analysis/code-path-analyzer.js:607:23) at CommentEventGenerator.enterNode (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/eslint/lib/util/comment-event-generator.js:97:23) at Controller.traverser.traverse.enter (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/eslint/lib/eslint.js:886:36) at Controller.__execute (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/estraverse/estraverse.js:397:31) at Controller.traverse (/Users/Shared/Jenkins/Home/workspace/Bulk-Downloader-Test/node_modules/estraverse/estraverse.js:501:28)

This was working on 2.9.0