无法在devDependencies

Question

我有一个看起来如下的package.json文件：

{
  "name": "basics",
  "version": "0.1.0",
  "private": true,
  "devDependencies": {
    "concurrently": "3.4.0",
    "react-scripts": "1.0.14",
    "fsr-helpers": "file:../../fsr-helpers"
  },
  "dependencies": {
    "history": "4.3.0",
    "prop-types": "15.6.0",
    "react": "16.0.0",
    "react-dom": "16.0.0",
    "react-router-dom": "4.2.2"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "eject": "react-scripts eject",
    "e2e": "nightwatch",
    "run-e2e": "./node_modules/.bin/concurrently -k 'npm start' 'npm run e2e'"
  }
}

在安装软件包期间，我收到以下错误消息：

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: core-js@2.4.1 (node_modules/fsr-helpers/node_modules/babel-polyfill/node_modules/core-js):
npm WARN enoent SKIPPING OPTIONAL DEPENDENCY: ENOENT: no such file or directory, rename '/home/developer/Desktop/fullstack-react-code/routing/basics/node_modules/.staging/core-js-4f416826' -> '/home/developer/Desktop/fullstack-react-code/fsr-helpers/node_modules/babel-polyfill/node_modules/core-js'

npm ERR! Maximum call stack size exceeded

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/developer/.npm/_logs/2018-03-01T21_00_59_918Z-debug.log

我想，错误发生了，因为：

"fsr-helpers": "file:../../fsr-helpers"

devDependencies中的

。该文件夹的结构如下所示：

，package.json的内容是：

{
  "name": "fsr-helpers",
  "version": "1.0.0",
  "private": true,
  "main": "dist/index.js",
  "dependencies": {
    "react": "15.5.4",
    "react-dom": "15.5.4"
  },
  "scripts": {
    "test": "jest src --watch",
    "compile": "./node_modules/.bin/babel -d dist/ src/"
  },
  "devDependencies": {
    "babel-cli": "6.24.0",
    "babel-core": "6.24.0",
    "babel-jest": "19.0.0",
    "babel-plugin-transform-es2015-modules-commonjs": "6.24.0",
    "babel-preset-es2016": "6.22.0",
    "babel-preset-react": "6.23.0",
    "babel-preset-stage-2": "6.22.0",
    "enzyme": "2.8.2",
    "jest": "19.0.2",
    "react-test-renderer": "16.0.0"
  }
}

为什么我会收到错误：

Maximum call stack size exceeded

"fsr-helpers": "file:../../fsr-helpers"是什么意思？

Answer 1

“file：”语法是一种使用包的本地路径的方法：https://docs.npmjs.com/files/package.json#local-paths

在你的情况下，它正在寻找package.json（../../）中的2级包 如果我正确地读取了您的文件夹结构（在项目中的文件夹中），它应该是file:./fsr-helpers。