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[Fix]: remove ESLint v3 from dependencies #2562

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toshi-toma commented Feb 2, 2020

already seems do not work in ESLint v3. and CI isn't checking ESLint v3.

errors 4245 passing (5s) 1 failing
  1. jsx-no-undef
    /eslint no-undef:1/ var React, App; React.render();:
    TypeError: Cannot read property 'variables' of null
    at checkIdentifierInJSX (lib/rules/jsx-no-undef.js:9:2040)
    at EventEmitter.JSXOpeningElement (lib/rules/jsx-no-undef.js:9:4242)
    at NodeEventGenerator.applySelector (node_modules/eslint/lib/util/node-event-generator.js:265:26)
    at NodeEventGenerator.applySelectors (node_modules/eslint/lib/util/node-event-generator.js:294:22)
    at NodeEventGenerator.enterNode (node_modules/eslint/lib/util/node-event-generator.js:308:14)
    at CodePathAnalyzer.enterNode (node_modules/eslint/lib/code-path-analysis/code-path-analyzer.js:602:23)
    at CommentEventGenerator.enterNode (node_modules/eslint/lib/util/comment-event-generator.js:98:23)
    at Traverser.enter (node_modules/eslint/lib/eslint.js:929:36)
    at Traverser.__execute (node_modules/estraverse/estraverse.js:330:31)
    at Traverser.traverse (node_modules/estraverse/estraverse.js:434:28)
    at Traverser.traverse (node_modules/eslint/lib/util/traverser.js:31:22)
    at EventEmitter.module.exports.api.verify (node_modules/eslint/lib/eslint.js:926:23)
    at runRuleForItem (node_modules/eslint/lib/testers/rule-tester.js:387:38)
    at testValidTemplate (node_modules/eslint/lib/testers/rule-tester.js:420:28)
    at Context. (node_modules/eslint/lib/testers/rule-tester.js:548:25)
    at processImmediate (internal/timers.js:439:21)
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ljharb left a comment

It’s still a breaking change - not a fix - to remove this from peer deps.

The proper fix is to resume testing on eslint 3, and fix any issues.

@ljharb ljharb added the semver-major label Feb 2, 2020
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