[eslint-config-next] Incompatible with eslint@8.0.0

[JustFly1984]

What version of Next.js are you using?

11.1.2

What version of Node.js are you using?

16.7

What browser are you using?

irrelevant

What operating system are you using?

irrelevant

How are you deploying your application?

irrelevant

Describe the Bug

Updating to eslint@8.0.0 produces an error:

Oops! Something went wrong! :(

ESLint: 8.0.0

Error: Cannot read config file: /Users/justfly/projects/tkww/homescreen-v2/node_modules/eslint-config-next/index.js
Error: Failed to patch ESLint because the calling module was not recognized.
If you are using a newer ESLint version that may be unsupported, please create a GitHub issue:
https://github.com/microsoft/rushstack/issues
Referenced from: /Users/justfly/projects/tkww/homescreen-v2/node_modules/eslint-config-next/core-web-vitals.js
    at Object.<anonymous> (/Users/justfly/projects/tkww/homescreen-v2/node_modules/@rushstack/eslint-patch/lib/modern-module-resolution.js:58:19)
    at Module._compile (/Users/justfly/projects/tkww/homescreen-v2/node_modules/v8-compile-cache/v8-compile-cache.js:192:30)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (/Users/justfly/projects/tkww/homescreen-v2/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
    at Object.<anonymous> (/Users/justfly/projects/tkww/homescreen-v2/node_modules/@rushstack/eslint-patch/modern-module-resolution.js:1:63)
    at Module._compile (/Users/justfly/projects/tkww/homescreen-v2/node_modules/v8-compile-cache/v8-compile-cache.js:192:30)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)

Currently reverted to 7.32.0

Expected Behavior

Should support eslint@8

To Reproduce

update eslint to latest 8.0.0 version in any nextjs project using eslint-config-next

[linosorice]

same for me

[stefanprobst]

see #29770

[JustFly1984]

I'm managing my own eslintrc.js and I have all dependencies versions strict (without ^). I've created this issue, cos I've tested updating eslint only. Now I'm faced another issue with eslint-plugin-import, which crashes vscode linting cos it is missing eslint-module-utils for some reason. I've added yarn add -D eslint-module-utils and now I'm getting multiple errors: Cannot read property 'body' of undefined Occurred while linting file ... in vscode problems Eslint output.

There is already an issue import-js/eslint-plugin-import#2255

[ljharb]

yarn upgrade eslint-module-utils should fix it, until the next patch release of eslint-plugin-import.

[ljharb]

eslint-plugin-import has been released; upgrade to v2.25.2 and you should be fine.

[rafde]

I am still seeing

node_modules/@rushstack/eslint-patch/lib/modern-module-resolution.js:58:19) at Module._compile (node:internal/modules/cjs/loader:1101:14) at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10) at Module.load (node:internal/modules/cjs/loader:981:32) at Function.Module._load (node:internal/modules/cjs/loader:822:12) at Module.require (node:internal/modules/cjs/loader:1005:19) at require (node:internal/modules/cjs/helpers:102:18) at Object. (node_modules/@rushstack/eslint-patch/modern-module-resolution.js:1:1) at Module._compile (node:internal/modules/cjs/loader:1101:14) at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)

with the eslint-plugin-import 2.25.2

you have to resolve to "@rushstack/eslint-patch": "1.0.8", to get it working

I highly would not recommend upgrading to eslint 8. There are many breaking changes that require rule authors to update their implementation

[housseindjirdeh]

ESLint 8 is not yet supported (see #29770). There's already a PR to add support that's in progress (#29865)

[monsieurnebo]

Same issue over here, hoping to see the PR merging soon 🤞