Closed as not planned
Description
Before You File a Bug Report Please Confirm You Have Done The Following...
- I have tried restarting my IDE and the issue persists.
- I have updated to the latest version of the packages.
- I have searched for related issues and found none that matched my issue.
- I have read the FAQ and my problem is not listed.
Relevant Package
typescript-eslint
Playground Link
No response
Repro Code
See: threeal/nodejs-starter#839
ESLint Config
// eslint.config.ts
import eslint from "@eslint/js";
import { globalIgnores } from "eslint/config";
import tseslint from "typescript-eslint";
export default tseslint.config(
globalIgnores(["dist"]),
eslint.configs.recommended,
tseslint.configs.strictTypeChecked,
tseslint.configs.stylisticTypeChecked,
{
languageOptions: {
parserOptions: {
projectService: true,
tsconfigRootDir: import.meta.dirname,
},
},
},
);tsconfig
Expected Result
Call to tsc does not cause typing error.
Actual Result
Call to tsc result in the following:
eslint.config.ts:6:3 - error TS2345: Argument of type 'Config<RulesRecord>' is not assignable to parameter of type 'InfiniteDepthConfigWithExtends'.
Type 'Config<RulesRecord>' is not assignable to type 'ConfigWithExtends'.
Types of property 'languageOptions' are incompatible.
Type 'import("/Users/threeal/Workspaces/nodejs/nodejs-starter/node_modules/.pnpm/eslint@9.29.0_jiti@2.4.2/node_modules/eslint/lib/types/index").Linter.LanguageOptions | undefined' is not assignable to type 'import("/Users/threeal/Workspaces/nodejs/nodejs-starter/node_modules/.pnpm/@typescript-eslint+utils@8.34.0_eslint@9.29.0_jiti@2.4.2__typescript@5.8.3/node_modules/@typescript-eslint/utils/dist/ts-eslint/Config").FlatConfig.LanguageOptions | undefined'.
Type 'import("/Users/threeal/Workspaces/nodejs/nodejs-starter/node_modules/.pnpm/eslint@9.29.0_jiti@2.4.2/node_modules/eslint/lib/types/index").Linter.LanguageOptions' is not assignable to type 'import("/Users/threeal/Workspaces/nodejs/nodejs-starter/node_modules/.pnpm/@typescript-eslint+utils@8.34.0_eslint@9.29.0_jiti@2.4.2__typescript@5.8.3/node_modules/@typescript-eslint/utils/dist/ts-eslint/Config").FlatConfig.LanguageOptions'.
Types of property 'ecmaVersion' are incompatible.
Type 'EcmaVersion | undefined' is not assignable to type 'EcmaVersion'.
Type '17' is not assignable to type 'EcmaVersion'.
6 globalIgnores(["dist"]),
~~~~~~~~~~~~~~~~~~~~~~~
Found 1 error in eslint.config.ts:6
Call to eslint does not have any issue, so purely typing issue. There's also no issue when using ESLint 9.28.0 or below.
Additional Info
No response
Versions
| package | version |
|---|---|
typescript-eslint |
8.34.0 |
TypeScript |
5.8.3 |
ESLint |
9.29.0 |
node |
24.2.0 |
{ "extends": "@tsconfig/node24", "compilerOptions": { "noEmit": true } }