"Cannot read property of 'loc' of undefined" when typing "const"

Tell us about your environment

• ESLint Version: 6.8.0
• Node Version: 14.15.3
• npm Version: 6.14.10

What parser (default, @babel/eslint-parser, @typescript-eslint/parser, etc.) are you using? parser: ‘@typescript-eslint/parser’,

Please show your full configuration:

Configuration

module.exports = {
  root: true,
  env: {
    node: true,
  },
  extends: [
    'plugin:vue/vue3-essential',
    '@vue/airbnb',
    '@vue/typescript/recommended',
  ],
  parserOptions: {
    ecmaVersion: 2020,
    parser: '@typescript-eslint/parser',
  },
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
  },
  overrides: [
    {
      files: [
        '**/__tests__/*.{j,t}s?(x)',
        '**/tests/unit/**/*.spec.{j,t}s?(x)',
      ],
      env: {
        jest: true,
      },
    },
  ],
};

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

When typing const, VScode is returning the following error:

ESLint: Cannot read property 'loc' of undefined Occurred while linting /xxx.ts:1. at Object.VariableDeclaration [as listener] (/xxx/node_modules/eslint/lib/rules/indent.js:1384:69)

What did you expect to happen? No error message. Apparently this was also an issue a few years ago (issue 441).

What actually happened? Please include the actual, raw output from ESLint.

ESLint: Cannot read property 'loc' of undefined Occurred while linting /xxx.ts:1. at Object.VariableDeclaration [as listener] (/xxx/node_modules/eslint/lib/rules/indent.js:1384:69)

[brandonwoz]

Hi @brandonwoz, thanks for the issue!

I think this is a duplicate of #13956. Can you try with @typescript-eslint/indent instead of the core indent rule:

{
  "indent": "off",
  "@typescript-eslint/indent": ["error"]
}

This worked. Thank you!

[niceue]

The problem is still not solved.