Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

TypeError: Cannot read property of 'CLIEngine' of undefined

See original GitHub issue

Hi team,

I’ve been consistently getting this error in the output channel of ESLint and was wondering if you could point me in the right direction:

[Info  - 12:48:15 AM] ESLint server stopped.
[Info  - 12:48:15 AM] ESLint server running in node v11.6.0
[Info  - 12:48:15 AM] ESLint server is running.
(node:3749) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'CLIEngine' of undefined
    at n.then.e (/Users/username/.vscode/extensions/dbaeumer.vscode-eslint-1.8.2/server/out/eslintServer.js:1:28199)
    at process.internalTickCallback (internal/process/next_tick.js:77:7)
(node:3749) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)

If there’s any suggestions or information you know of that can help me resolve this, please let me know. Thanks!

Issue Analytics

State:
Created 4 years ago
Reactions:4
Comments:18 (7 by maintainers)

Top GitHub Comments

1reaction

decentralisercommented, Apr 23, 2019

I just downgraded eslint version to 5.15.0, ran npm i, and I am not facing the issue anymore

1reaction

dbaeumercommented, Apr 16, 2019

@ashah023 I leave this one open for some time.

Top Results From Across the Web

Ask Question - Stack Overflow

Module build failed (from ./node_modules/eslint-loader/dist/cjs.js): TypeError: Cannot read properties of undefined (reading 'getFormatter').

Cannot read property 'getFormatter' of undefined - JavaScript

Trying to read properties on variables that are undefined or null is a big no-no. I assume that the issue is one of...

Incompatible with eslint v8.0 (#16) · Issues - GitLab

This is what I get when trying to generate. ... ESLint: 8.0.0 TypeError: Cannot read property 'getFormatter' of undefined at module.exports ...

eslint.CLIEngine.getFormatter JavaScript and Node.js code ...

npm/test-lint.js/async.waterfall ·.waterfall([ · // execute the CLI engine · function (next) { · null, (new ESLintCLIEngine()).executeOnFiles(LINT_SOURCE_DIRS)); } ...

Node.js API - ESLint - Pluggable JavaScript Linter

Unless set to false , the eslint.lintFiles() method will throw an error when no ... This property is undefined if this message doesn't...