"Cannot read property 'value' of null" while linting

[noftaly]

Tell us about your environment

Environment Info:

Node version: v14.3.0
npm version: v6.14.5
Local ESLint version: vundefined (Currently used)
Global ESLint version: v7.1.0

It does not recognize my local version but in my package.json I have v7.1.0
I have the same error with nodejs v12.17.0

What parser (default, Babel-ESLint, etc.) are you using?
I use babel-eslint 10.1.0 (with @babel/core 7.10.2, @babel/node 7.10.1, @babel/preset-env 7.10.2)

Please show your full configuration:

Configuration

module.exports = {
  parser: 'babel-eslint',
  extends: 'airbnb-base',
  rules: {
    'arrow-parens': [
      'error',
      'as-needed',
      { requireForBlockBody: true },
    ],
    'no-console': 'off',
    'no-plusplus': 'off',
    'no-continue': 'off',
    'no-await-in-loop': 'off',
    'no-loop-func': 'off',
    'no-underscore-dangle': 'off',
    'consistent-return': 'off',
    'class-methods-use-this': 'off',
    'max-len': 'off',
    'no-restricted-syntax': 'off',
    'no-restricted-globals': 'off',
    'no-unused-vars': [
      'error',
      { argsIgnorePattern: '^_' },
    ],
    'object-curly-newline': [
      'error',
      { ImportDeclaration: 'never' },
    ],
  },
};

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

My file is pretty long so I'll link you to the file on the repo (on the right line): https://github.com/Skript-MC/Swan/blob/dev/src/SwanClient.js#L74

eslint .

What did you expect to happen?
No error to occur, just lint ^^

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

➜  Swan-dev: npm run lint           

> swan@1.7.0 lint /Bot/Swan-dev
> eslint .


Oops! Something went wrong! :(

ESLint: 7.1.0

TypeError: Cannot read property 'value' of null
Occurred while linting /Bot/Swan-dev/src/SwanClient.js:74
    at checkSpacingBefore (/Bot/Swan-dev/node_modules/eslint/lib/rules/template-curly-spacing.js:52:24)
    at TemplateElement (/Bot/Swan-dev/node_modules/eslint/lib/rules/template-curly-spacing.js:136:17)
    at /Bot/Swan-dev/node_modules/eslint/lib/linter/safe-emitter.js:45:58
    at Array.forEach (<anonymous>)
    at Object.emit (/Bot/Swan-dev/node_modules/eslint/lib/linter/safe-emitter.js:45:38)
    at NodeEventGenerator.applySelector (/Bot/Swan-dev/node_modules/eslint/lib/linter/node-event-generator.js:254:26)
    at NodeEventGenerator.applySelectors (/Bot/Swan-dev/node_modules/eslint/lib/linter/node-event-generator.js:283:22)
    at NodeEventGenerator.enterNode (/Bot/Swan-dev/node_modules/eslint/lib/linter/node-event-generator.js:297:14)
    at CodePathAnalyzer.enterNode (/Bot/Swan-dev/node_modules/eslint/lib/linter/code-path-analysis/code-path-analyzer.js:635:23)
    at /Bot/Swan-dev/node_modules/eslint/lib/linter/linter.js:949:32

Are you willing to submit a pull request to fix this bug?
No :(

Additional Infos:
For me and the other person I work on this project with, we don't have any error and the linting can finish without any problems. But we discovered this error through a GitHub action (same error as above). We then tested by downloading the repo and putting it into a brand new directory, installing deps (npm i) and running npm run lint (= eslint .) and the error occurs...
Excuse my English

[yeonjuan]

Hi :) @noftaly
It seems a bug in babel-eslint. - babel/babel#10904

• online-demo - bug not occurs

[noftaly]

Thanks very much for that fast response ! Indeed this is related to the issue you mentionned. I'll close this one as it is not related to ESLint then ! :)