Question

在我们的nestjs项目中嵌入@ nestjs / terminus @ 6.1.0时，无法识别出@ nestjs / microservices类型：

$> tsc

node_modules/@nestjs/microservices/external/redis.interface.d.ts:2:23 - error TS2688: Cannot find type definition file for 'mocha'.
2 /// <reference types="mocha" />
                        ~~~~~
Found 1 error.

添加 npm i --save-dev @ types / mocha 时，我显然与Jest冲突，Jest是我们正在使用的测试框架...

$> tsc

node_modules/@types/jest/index.d.ts:27:13 - error TS2403: Subsequent variable declarations must have the same type.  Variable 'beforeEach' must be of type 'HookFunction', but here has type 'Lifecycle'.

27 declare var beforeEach: jest.Lifecycle;
...

目前，我发现的唯一解决方法是在tsconfig.json文件中使用skipLibCheck ...不是很干净。

这是我package.json文件的dep部分：

[...]
"dependencies": {
    "@nestjs/common": "^6.0.5",
    "@nestjs/core": "^6.0.5",
    "@nestjs/mongoose": "^6.0.0",
    "@nestjs/graphql": "^6.2.1",
    "@nestjs/swagger": "^3.0.2",
    "@nestjs/terminus": "6.1.0",
    "@godaddy/terminus": "4.1.0",
    "app-root-path": "^2.2.1",
    "class-transformer": "^0.2.0",
    "class-validator": "^0.9.1",
    "codacy-coverage": "^3.1.0",
    "apollo-server-express": "^2.5.0",
    "graphql": "^14.3.0",
    "graphql-tools": "^4.0.4",
    "js-cache": "^1.0.3",
    "mongoose": "^5.4.0",
    "reflect-metadata": "^0.1.13",
    "rxjs": "^6.4.0",
    "typescript": "^3.5.2",
    "winston": "^3.2.1"
  },
  "devDependencies": {
    "@nestjs/testing": "^5.0.0",
    "@types/express": "^4.0.39",
    "@types/jest": "^21.1.8",
    "@types/node": "^9.3.0",
    "@types/supertest": "^2.0.4",
    "jest": "^21.2.1",
    "nodemon": "^1.14.1",
    "prettier": "^1.11.1",
    "supertest": "^3.0.0",
    "ts-jest": "^21.2.4",
    "ts-loader": "^4.1.0",
    "ts-node": "^4.1.0",
    "tsconfig-paths": "^3.1.1",
    "tslint": "5.3.2"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "lib",
    "testRegex": ".spec.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "coverageDirectory": "../coverage"
  }

有什么主意如何以干净的方式解决此问题？

谢谢！

Answer 1

您可以通过向"types": []添加compilerOptions并包括除@types/jest之外的所有类型的程序包来使您的方法可行。您可以使用"types": ["express", "node", "supertest"]。

Answer 2

对我来说是同样的错误。由于它似乎与NestJS的微服务包有关，因此我只需在依赖项中添加“ @ nestjs / microservices”，即可正常使用。

Answer 3

对于那些有相同问题的人，我在following article中找到的skipCheckLib的替代方法是：

在我的项目中创建一个空文件 overrides / mocha / index.d.ts
添加到tsconfig文件“ typeRoots”：[“替代”，“ node_modules / @ types”]

这将覆盖mocha def，并避免def重复（因为我仅使用Jest）。

虽然不如我所愿，但它仍然比 skipChekLib 选项要好。

Answer 4

我们已通过发布void append_chunk (std::string &s, const uint8_t* chunk, size_t chunk_num_bytes) { s.append ((char *) chunk, chunk_num_bytes); }解决了此问题-不便之处，敬请原谅。 https://github.com/nestjs/nest/issues/2534

Nestjs-在@ nestjs / microservices依赖项中声明的Mocha类型问题

4 个答案: