Installation conflict with eslint 8.0

[crystalfp]

• [Not applicable] I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I have read the FAQ and my problem is not listed.

Repro

• Create a project with this package.json file
• Install everything with npm i
• The following error appears:

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: iie@0.47.5
npm ERR! Found: eslint@8.0.0
npm ERR! node_modules/eslint
npm ERR!   dev eslint@"^8.0.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer eslint@"^5.0.0 || ^6.0.0 || ^7.0.0" from @typescript-eslint/parser@4.33.0
npm ERR! node_modules/@typescript-eslint/parser
npm ERR!   dev @typescript-eslint/parser@"^4.33.0" from the root project
npm ERR!   peer @typescript-eslint/parser@"^4.0.0" from @typescript-eslint/eslint-plugin@4.33.0
npm ERR!   node_modules/@typescript-eslint/eslint-plugin
npm ERR!     dev @typescript-eslint/eslint-plugin@"^4.33.0" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!
npm ERR! See C:\Users\mvalle\AppData\Local\npm-cache\eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\mvalle\AppData\Local\npm-cache\_logs\2021-10-11T08_37_13_931Z-debug.log

Here are the two mentioned logs:
eresolve-report.txt

2021-10-11T08_37_13_931Z-debug.log

Expected Result
To be able to install everything and to be able to use eslint 8.0 on my project.

Actual Result
See above

Additional Info

Versions

package	version
@typescript-eslint/eslint-plugin	4.33.0
@typescript-eslint/parser	4.33.0
TypeScript	4.4.3
ESLint	8.0.0
node	16.6.1

[anthony-telljohann]

When running eslint@8.0.0 with typescript-eslint

> eslint --ignore-path .gitignore --ext .ts . --fix

My team and I are getting the following error

Oops! Something went wrong! :(

ESLint: 8.0.0

TypeError: Failed to load plugin '@typescript-eslint' declared in '.eslintrc.json': Class extends value undefined is not a constructor or null
    at Object.<anonymous> (/node_modules/@typescript-eslint/experimental-utils/dist/ts-eslint/CLIEngine.js:12:34)
    at Module._compile (/node_modules/v8-compile-cache/v8-compile-cache.js:192:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)
    at Module.load (internal/modules/cjs/loader.js:937:32)
    at Function.Module._load (internal/modules/cjs/loader.js:778:12)
    at Module.require (internal/modules/cjs/loader.js:961:19)
    at require (/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
    at Object.<anonymous> (/node_modules/@typescript-eslint/experimental-utils/dist/ts-eslint/index.js:14:14)
    at Module._compile (/node_modules/v8-compile-cache/v8-compile-cache.js:192:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)

[omjokine]

It's in pinned issues... #3738

[bradzacher]

Please use the search before filing an issue next time. There is a pinned issue detailing support (thanks @omjokine!) #3738