NestJS导入PassportStrategy报错求助：找不到模块'../../lib'

报错详情 #

编译时触发如下错误：

node_modules/@nestjs/passport/test/common/jwt.strategy.ts:3:34 - error TS2307: Cannot find module '../../lib' or its corresponding type declarations.
3 import { PassportStrategy } from '../../lib';

我的代码实现 #

import { ConfigService } from '@nestjs/config';
import { ExtractJwt, Strategy } from 'passport-jwt';
import { PassportStrategy } from '@nestjs/passport';

export class JwtStrategy extends PassportStrategy(Strategy) {
  constructor(config: ConfigService) {
    super({
      jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
      secretOrKey: config.get('JWT_SECRET'),
    });
  }
}

项目依赖配置 #

"dependencies": {
    "@nestjs/common": "^9.0.0",
    "@nestjs/config": "^2.2.0",
    "@nestjs/core": "^9.0.0",
    "@nestjs/jwt": "^9.0.0",
    "@nestjs/passport": "^9.0.0",
    "@nestjs/platform-express": "^9.0.0",
    "@nestjs/swagger": "^6.1.4",
    "@prisma/client": "^4.8.0",
    "argon2": "^0.30.2",
    "class-transformer": "^0.5.1",
    "class-validator": "^0.14.0",
    "passport": "^0.6.0",
    "reflect-metadata": "^0.1.13",
    "rimraf": "^3.0.2",
    "rxjs": "^7.2.0"
  },
  "devDependencies": {
    "@nestjs/cli": "^9.0.0",
    "@nestjs/schematics": "^9.0.0",
    "@nestjs/testing": "^9.0.0",
    "@types/express": "^4.17.13",
    "@types/jest": "28.1.8",
    "@types/node": "^16.0.0",
    "@types/passport-jwt": "^3.0.8",
    "@types/supertest": "^2.0.11",
    "@typescript-eslint/eslint-plugin": "^5.0.0",
    "@typescript-eslint/parser": "^5.0.0",
    "eslint": "^8.0.1",
    "eslint-config-prettier": "^8.3.0",
    "eslint-plugin-prettier": "^4.0.0",
    "jest": "28.1.3",
    "prettier": "^2.3.2",
    "prisma": "^4.8.0",
    "source-map-support": "^0.5.20",
    "supertest": "^6.1.3",
    "ts-jest": "28.0.8",
    "ts-loader": "^9.2.3",
    "ts-node": "^10.0.0",
    "tsconfig-paths": "4.1.0",
    "typescript": "^4.7.4"
  }

问题原因及解决方法 #

这个报错并非你的代码问题，而是TypeScript编译时错误包含了node_modules中@nestjs/passport的测试文件——该测试文件的相对导入路径仅适用于包内部，在你的项目环境下无法解析。

解决步骤： #

1. 检查tsconfig.json配置
   确保exclude字段包含node_modules，include仅指向你的源码目录（如src/**/*），示例配置：

   {
     "compilerOptions": {
       // 其他原有配置...
     },
     "include": ["src/**/*"],
     "exclude": ["node_modules", "dist"]
   }
   

2. 清理缓存与重新安装依赖
   删除旧的依赖和编译产物，重新安装依赖：

   rm -rf node_modules dist
   npm install
   

3. 验证编译命令
   确保使用NestJS默认的start或build命令，避免自定义命令错误包含了node_modules目录。

内容的提问来源于stack exchange，提问作者Ziya Karagöz