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v4.14.0 scope analysis issue with babel-eslint

See original GitHub issue

For some reason, after update:

ERROR  Failed to compile with 1 errors                                                                                                    00:04:50
error  in ./pages/_document.js?entry

Module build failed: TypeError: Cannot read property 'type' of undefined
    at isForInRef (/Users/steida/dev/este/node_modules/eslint/lib/rules/no-unused-vars.js:410:24)
    at variable.references.some.ref (/Users/steida/dev/este/node_modules/eslint/lib/rules/no-unused-vars.js:447:21)
    at Array.some (<anonymous>)
    at isUsedVariable (/Users/steida/dev/este/node_modules/eslint/lib/rules/no-unused-vars.js:446:40)
    at collectUnusedVariables (/Users/steida/dev/este/node_modules/eslint/lib/rules/no-unused-vars.js:569:26)
    at Program:exit (/Users/steida/dev/este/node_modules/eslint/lib/rules/no-unused-vars.js:621:36)
    at listeners.(anonymous function).forEach.listener (/Users/steida/dev/este/node_modules/eslint/lib/util/safe-emitter.js:47:58)
    at Array.forEach (<anonymous>)
    at Object.emit (/Users/steida/dev/este/node_modules/eslint/lib/util/safe-emitter.js:47:38)
    at NodeEventGenerator.applySelector (/Users/steida/dev/este/node_modules/eslint/lib/util/node-event-generator.js:251:26)

Issue Analytics

State:
Created 6 years ago
Reactions:4
Comments:20 (8 by maintainers)

Top GitHub Comments

2reactions

ndelangencommented, Dec 24, 2017

@not-an-aardvark I tried babel-eslint 8.1.0 and was still experiencing the issue.

I’ve downgraded to eslint 4.13.0 for now.

Opened a babel-eslint ticket here: https://github.com/babel/babel-eslint/issues/558

1reaction

mikeconwellcommented, Jan 3, 2018

@not-an-aardvark I’ll put the work on that team to update dependencies citing this task. May come back later. Thanks for quick response.

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