nest build failed: unknown field forcedOutputFileExtension

[eyal-benatav]

NestJS CLI fails to compile with @swc/cli version 0.7.5

Steps:

1. Create new Nest Project

nest new some-project

2. Update @swc/cli to 0.7.5
3. Run the project with SWC:

nest start -b swc

Error:

unknown field `forcedOutputFileExtension`, expected one of `allowTopLevelThis`, `strict`, `strictMode`, `lazy`, `importInterop`, `exportInteropAnnotation`, `noInterop`, `ignoreDynamic`, `preserveImportMeta`, `resolveFully`, `outFileExtension` at line 1 column 508
unknown field `forcedOutputFileExtension`, expected one of `allowTopLevelThis`, `strict`, `strictMode`, `lazy`, `importInterop`, `exportInteropAnnotation`, `noInterop`, `ignoreDynamic`, `preserveImportMeta`, `resolveFully`, `outFileExtension` at line 1 column 553
unknown field `forcedOutputFileExtension`, expected one of `allowTopLevelThis`, `strict`, `strictMode`, `lazy`, `importInterop`, `exportInteropAnnotation`, `noInterop`, `ignoreDynamic`, `preserveImportMeta`, `resolveFully`, `outFileExtension` at line 1 column 529
unknown field `forcedOutputFileExtension`, expected one of `allowTopLevelThis`, `strict`, `strictMode`, `lazy`, `importInterop`, `exportInteropAnnotation`, `noInterop`, `ignoreDynamic`, `preserveImportMeta`, `resolveFully`, `outFileExtension` at line 1 column 526
unknown field `forcedOutputFileExtension`, expected one of `allowTopLevelThis`, `strict`, `strictMode`, `lazy`, `importInterop`, `exportInteropAnnotation`, `noInterop`, `ignoreDynamic`, `preserveImportMeta`, `resolveFully`, `outFileExtension` at line 1 column 538
Failed to compile 5 files with swc.

 Error  Failed to compile:
src/app.controller.spec.ts
src/app.controller.ts
src/app.module.ts
src/app.service.ts
src/main.ts

Package.json

{ "name": "swc-cli-bug", "version": "0.0.1", "description": "", "author": "", "private": true, "license": "UNLICENSED", "scripts": { "build": "nest build", "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"", "start": "nest start", "start:dev": "nest start --watch", "start:debug": "nest start --debug --watch", "start:prod": "node dist/main", "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix", "test": "jest", "test:watch": "jest --watch", "test:cov": "jest --coverage", "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand", "test:e2e": "jest --config ./test/jest-e2e.json" }, "dependencies": { "@nestjs/common": "^11.1.0", "@nestjs/core": "^11.1.0", "@nestjs/platform-express": "^11.1.0", "reflect-metadata": "^0.2.2", "rxjs": "^7.8.2" }, "devDependencies": { "@eslint/eslintrc": "^3.3.1", "@eslint/js": "^9.26.0", "@nestjs/cli": "^11.0.7", "@nestjs/schematics": "^11.0.5", "@nestjs/testing": "^11.1.0", "@swc/cli": "^0.7.5", "@swc/core": "^1.11.24", "@types/express": "^5.0.1", "@types/jest": "^29.5.14", "@types/node": "^22.10.7", "@types/supertest": "^6.0.3", "eslint": "^9.26.0", "eslint-config-prettier": "^10.1.3", "eslint-plugin-prettier": "^5.4.0", "globals": "^16.1.0", "jest": "^29.7.0", "prettier": "^3.5.3", "source-map-support": "^0.5.21", "supertest": "^7.1.0", "ts-jest": "^29.3.2", "ts-loader": "^9.5.2", "ts-node": "^10.9.2", "tsconfig-paths": "^4.2.0", "typescript": "^5.8.3", "typescript-eslint": "^8.32.0" }, "jest": { "moduleFileExtensions": [ "js", "json", "ts" ], "rootDir": "src", "testRegex": ".*\\.spec\\.ts$", "transform": { "^.+\\.(t|j)s$": "ts-jest" }, "collectCoverageFrom": [ "**/*.(t|j)s" ], "coverageDirectory": "../coverage", "testEnvironment": "node" }, "packageManager": "yarn@4.9.1" }

It works with 0.7.3

[kdy1]

I reverted #95