Babel-eslint: 0:0 error Parsing error: Cannot set property '0' of undefined

[Darper]

Using version ^8.0.1 and started getting this error on every run of eslint after updating node_modules.

0:0 error Parsing error: Cannot set property '0' of undefined

Seems similar to https://github.com/babel/babel-eslint/issues/155

[mvelebit]

+1, thought these were exterminated a while back..

[jackjwilliams]

Same here, also getting this error :(

[VinceBT]

+1

[xaphod]

+1.

$ node_modules/eslint/bin/eslint.js --debug ./index.js
  eslint:cli Running on files +0ms
  eslint:glob-util Creating list of files to process. +0ms
  eslint:ignored-paths Looking for ignore file in /Users/me/work/project +0ms
  eslint:ignored-paths Could not find ignore file in cwd +0ms
  eslint:cli-engine Processing /Users/me/work/project/index.js +0ms
  eslint:cli-engine Linting /Users/me/work/project/index.js +0ms
  eslint:config Constructing config file hierarchy for /Users/me/work/project +0ms
  eslint:config Using .eslintrc and package.json files +0ms
  eslint:config Loading /Users/me/work/project/.eslintrc.json +0ms
  eslint:config-file Loading JSON config file: /Users/me/work/project/.eslintrc.json +0ms
  eslint:config-file Loading airbnb +103ms
  eslint:config-file Attempting to resolve eslint-config-airbnb +0ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb/index.js +1ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb/rules/react-a11y.js +2ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb/rules/react-a11y.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb/rules/react.js +176ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb/rules/react.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/strict.js +31ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/strict.js +1ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/index.js +1ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/index.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/imports.js +2ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/imports.js +1ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/es6.js +85ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/es6.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/variables.js +12ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/variables.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/style.js +6ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/style.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/node.js +84ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/node.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/errors.js +2ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/errors.js +0ms
  eslint:config-file Loading /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/best-practices.js +5ms
  eslint:config-file Loading JS config file: /Users/me/work/project/node_modules/eslint-config-airbnb-base/rules/best-practices.js +0ms
  eslint:config Using /Users/me/work/project/.eslintrc.json +528ms
  eslint:config-ops Using config from partial cache +0ms
  eslint:config-ops Apply environment settings to config +1ms
  eslint:config-ops Creating config for environment node +0ms
  eslint:config-ops Creating config for environment es6 +0ms
  eslint:linter Linting code for /Users/me/work/project/index.js (pass 1) +0ms
  eslint:linter Generating fixed text for /Users/me/work/project/index.js (pass 1) +128ms
  eslint:text-fixer Applying fixes +0ms
  eslint:text-fixer shouldFix parameter was false, not attempting fixes +0ms
  eslint:cli-engine Linting complete in: 664ms +661ms

/Users/me/work/project/index.js
  0:0  error  Parsing error: Cannot set property '0' of undefined

✖ 1 problem (1 error, 0 warnings)

$ cat .eslintrc.json
{
    "extends": "airbnb",
    "parser": "babel-eslint",
    "rules": {
        "react/jsx-filename-extension": [
            1,
            {
                "extensions": [
                    ".js",
                    ".jsx"
                ]
            }
        ],
        "react/prefer-stateless-function": 0,
        "react/prop-types": 0
    }
}

$ cat package.json
{
  "name": "project",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
  },
  "dependencies": {
    "babel-core": "^6.26.0",
    "babel-eslint": "^8.2.2",
    "eslint": "^4.18.2",
    "react": "^16.3.0-alpha.1",
    "react-native": "0.54.0-rc.3",
    "react-native-i18n": "^2.0.12",
    "react-native-safe-area-view": "^0.7.0",
    "react-native-vector-icons": "^4.5.0",
    "react-navigation": "^1.2.1",
    "react-navigation-redux-helpers": "^1.0.1",
    "react-redux": "^5.0.7",
    "redux": "^3.7.2",
    "redux-persist": "^4.8.3",
    "redux-thunk": "^2.2.0"
  },
  "devDependencies": {
    "babel-jest": "22.4.1",
    "babel-preset-react-native": "4.0.0",
    "eslint-config-airbnb": "^16.1.0",
    "eslint-plugin-import": "^2.9.0",
    "eslint-plugin-jsx-a11y": "^6.0.3",
    "eslint-plugin-react": "^7.7.0",
    "jest": "22.4.2",
    "react-test-renderer": "^16.3.0-alpha.1"
  },
  "jest": {
    "preset": "react-native"
  },
  "rnpm": {
    "assets": [
      "./App/assets/font/"
    ]
  }
}

I don't get this error when I use the globally-installed eslint. I don't understand why one works, other doesn't. My globally-installed packages: http://fuzzymunchkin.com/tmp/globalpackages.txt

[xaphod]

... and not sure if related:

$ yarn install
yarn install v1.5.1
[1/4] 🔍  Resolving packages...
[2/4] 🚚  Fetching packages...
warning Pattern ["[email protected]"] is trying to unpack in the same destination "/Users/Tim/Library/Caches/Yarn/v1/npm-babylon7-7.0.0-beta.40-91fc8cd56d5eb98b28e6fde41045f2957779940a" as pattern ["babylon@^7.0.0-beta.40"]. This could result in non-deterministic behavior, skipping.
warning Pattern ["babylon7@npm:babylon@^7.0.0-beta"] is trying to unpack in the same destination "/Users/Tim/Library/Caches/Yarn/v1/npm-babylon7-7.0.0-beta.40-91fc8cd56d5eb98b28e6fde41045f2957779940a" as pattern ["babylon@^7.0.0-beta.40"]. This could result in non-deterministic behavior, skipping.
[3/4] 🔗  Linking dependencies...
warning "react-native > metro > @babel/[email protected]" has incorrect peer dependency "@babel/[email protected]".
[4/4] 📃  Building fresh packages...
success Saved lockfile.
✨  Done in 2.68s.

Update: If i remove babel-eslint from my .estlintrc.json, the errors go away (but I get all the annoying warnings about ES7 features that I was using it to avoid in the first place)

[ThePeach]

Having the same problem, as suggested by @xaphod if I remove "parser": "babel-eslint" from .eslintrc no more errors
I'm using ES7 feature as well so this is a blocker for me.

[ThePeach]

managed to fix the issue, by starting to use the following in .eslint

{
  "parser": "babel-eslint",
  "extends": [ "airbnb", "plugin:react/recommended", "prettier", "prettier/react", "prettier/standard" ],
  "plugins": [ "react", "import", "promise", "compat", "prettier" ],
  ...
}

I'm now scared of touching it :P

@xaphod are you able to take a look yourself and validate?

[xaphod]

Apologies, i'm in a totally different universe now :(

[kaicataldo]

Thank you for the issue. Now that @babel/eslint-parser has been released, we are making this repository read-only. If this is a change you would still like to advocate for, please reopen this in the babel/babel monorepo.