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I have come across this error after a recent upgrade, and it looks like it may be related to 9b227aa. This only happens with the airbnb plugin enabled, which my company is using. If you comment that line out from the .eslintrc.js file, it works fine.
Apologies if this is not the appropriate place for this, I can take it to Airbnb if it's a better fit.
Minimal .eslintrc.js:
module.exports = {
parser: '@babel/eslint-parser',
extends: 'airbnb',
parserOptions: {
requireConfigFile: false,
},
};
Minimal test.js:
class Thing extends Component {
static getDerivedStateFromProps = (nextProps, prevState) => {
};
};
# ./node_modules/eslint/bin/eslint.js test.js
Oops! Something went wrong! :(
ESLint: 7.32.0
TypeError: Cannot read properties of undefined (reading 'variables')
Occurred while linting /root/test.js:2
at PropertyDefinition, ClassProperty (/root/node_modules/eslint-plugin-react/lib/rules/no-unused-state.js:373:20)
at /app/frontend/node_modules/eslint/lib/linter/safe-emitter.js:45:58
at Array.forEach (<anonymous>)
at Object.emit (/app/frontend/node_modules/eslint/lib/linter/safe-emitter.js:45:38)
at NodeEventGenerator.applySelector (/app/frontend/node_modules/eslint/lib/linter/node-event-generator.js:293:26)
at NodeEventGenerator.applySelectors (/app/frontend/node_modules/eslint/lib/linter/node-event-generator.js:322:22)
at NodeEventGenerator.enterNode (/app/frontend/node_modules/eslint/lib/linter/node-event-generator.js:336:14)
at CodePathAnalyzer.enterNode (/app/frontend/node_modules/eslint/lib/linter/code-path-analysis/code-path-analyzer.js:711:23)
at /app/frontend/node_modules/eslint/lib/linter/linter.js:960:32
at Array.forEach (<anonymous>)
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