我最近清理和更新了一个私有包，它将用Vite构建。
在清理之前，package.json看起来像这样：

{
  "name": "@myRegistry/my-package",
  "version": "7.15.1",
  "main": "./dist/index.js",
  "typings": "./dist/index.d.ts",
  "scripts": {
    "build": "tsc --outDir dist/",
    "build:docs": "typedoc ./index.ts",
    "test": "jest",
    "prepublishOnly": "npm run build"
  },
  "dependencies": {
    "portable-fetch": "^3.0.0"
  },
  "devDependencies": {
    "@types/jest": "^25.2.1",
    "@types/node": "^13.13.0",
    "jest": "^25.4.0",
    "ts-jest": "^25.4.0",
    "typedoc": "^0.20.36",
    "typescript": "^3.8.3"
  },
  "jest": {
    "transform": {
      "^.+\\.tsx?$": "ts-jest"
    },
    "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.tsx?$",
    "moduleFileExtensions": [
      "ts",
      "tsx",
      "js",
      "jsx",
      "json",
      "node"
    ]
  }
}

这是新的和当前的package.json。我做了Vite脚手架，只改变了我必须：

{
  "name": "@myRegistry/my-package",
  "version": "7.16.0",
  "type": "module",
  "files": [
    "build"
  ],
  "main": "./build/my-package.js",
  "module": "./build/my-package.js",
  "types": "./build/index.d.ts",
  "exports": {
    ".": {
      "import": "./build/my-package.js"
    }
  },
  "scripts": {
    "build": "tsc && vite build",
    "docs": "typedoc ./src/index.ts"
  },
  "devDependencies": {
    "typedoc": "^0.23.21",
    "typescript": "^4.6.4",
    "vite": "^3.2.3",
    "vite-plugin-dts": "^1.7.1"
  },
  "dependencies": {
    "isomorphic-fetch": "^3.0.0",
    "url": "^0.11.0"
  }
}

这个包安装在两个同样使用Vite的项目中。
一个包用Vitest做单元测试，我可以在那个包中运行单元测试，没有问题。
另一个项目使用Jest进行单元测试，在那个项目中，对于导入包的每个文件，我都会收到如下错误：

Cannot find module '@myRegistry/my-package' from 'src/fileToTest.ts'

Require stack:
  src/fileToTest.ts
  tests/unit/fileToTest.spec.ts

下面是该项目的jest.config.js：

module.exports = {
  coverageReporters: ['cobertura'],
  moduleDirectories: [
    'node_modules',
    'src'
  ],
  moduleFileExtensions: ['js', 'ts', 'vue'],
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1'
  },
  modulePaths: ['<rootDir>', '<rootDir>/node_modules'],
  preset: 'ts-jest/presets/default-esm',
  rootDir: './',
  setupFilesAfterEnv: ['<rootDir>tests/setup.ts'],
  testEnvironment: 'jest-environment-jsdom',
  testMatch: ['**/tests/unit/**/?(*.)+(spec|test).[jt]s?(x)'],
  transform: {
    '.*\\.(vue)$': '@vue/vue2-jest',
    '^.+\\.(js|jsx)$': 'babel-jest',
    '^.+\\.(ts|tsx)?$': 'ts-jest'
  },
  transformIgnorePatterns: ['/node_modules/']
}

我只是不知道我错过了什么，并希望得到任何帮助。