UNMET PEER DEPENDENCY D3.js和Angular 2

Question

我有一个现有的Angular 2项目,我正在尝试将一些D3.js集成到我的项目中.我是Angular的新手,这将是我第一次使用D3.我将关注本教程:https://keathmilligan.net/create-reusable-chart-components-with-angular-2-and-d3-js-version-4/

我正在运行命令npm install --save d3,我得到:

??? UNMET PEER DEPENDENCY @angular/compiler@2.2.3
??? UNMET PEER DEPENDENCY @angular/compiler-cli@2.2.3
??? UNMET PEER DEPENDENCY @angular/core@2.2.3
??? d3@4.4.1

...然后

npm WARN @ngtools/webpack@1.2.1 requires a peer of @angular/compiler@^2.3.1 but none was installed.
npm WARN @ngtools/webpack@1.2.1 requires a peer of @angular/compiler-cli@^2.3.1 but none was installed.
npm WARN @ngtools/webpack@1.2.1 requires a peer of @angular/core@^2.3.1 but none was installed.
npm WARN @ngtools/webpack@1.2.1 requires a peer of @angular/tsc-wrapped@^0.5.0 but none was installed.
npm WARN tslint-loader@2.1.5 requires a peer of tslint@^3.0.0 but none was installed.

首先,我想当我看到时,我仍然不清楚它到底意味着什么"UNMET PEER DEPENDENCY".这只是一个警告,还是这表明某些事情真的被打破了？我的项目目前正在运行(但我还没有开始用D3编码)......仅仅是安装了错误版本的东西吗？我已经采取了更新所有内容的步骤npm update --save,NPM确实为我找到了一些更新,但我仍然有同样的问题.

我的主要问题是,我正在安装D3js,不应该完全独立于Angular吗？当我安装不相关的东西时,为什么NPM会对Angular的东西咆哮？

这是我的package.json帖子更新:

  "name": "cl-test2",
  "version": "0.0.0",
  "license": "MIT",
  "angular-cli": {},
  "scripts": {
    "start": "ng serve",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update",
    "e2e": "protractor"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "2.2.3",
    "@angular/compiler": "2.2.3",
    "@angular/core": "^2.2.3",
    "@angular/forms": "2.2.3",
    "@angular/http": "2.2.3",
    "@angular/platform-browser": "2.2.3",
    "@angular/platform-browser-dynamic": "2.2.3",
    "@angular/router": "3.2.3",
    "@types/node": "^6.0.58",
    "angular-cli": "^1.0.0-beta.22-1",
    "core-js": "^2.4.1",
    "d3": "^4.4.1",
    "rxjs": "5.0.0-beta.12",
    "ts-helpers": "^1.1.1",
    "tslint": "^4.3.1",
    "zone.js": "^0.6.23"
  },
  "devDependencies": {
    "@angular/compiler-cli": "2.2.3",
    "@types/jasmine": "2.5.38",
    "@types/node": "^6.0.42",
    "angular-cli": "^1.0.0-beta.24",
    "codelyzer": "~2.0.0-beta.1",
    "jasmine-core": "2.5.2",
    "jasmine-spec-reporter": "2.5.0",
    "karma": "1.2.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "protractor": "4.0.9",
    "ts-node": "1.2.1",
    "tslint": "^4.0.2",
    "typescript": "~2.0.3",
    "webdriver-manager": "10.2.5"
  }
}

Answer 1

UNMET PEER DEPENDENCY日志只是警告而不是错误。

他们警告您，您正在使用的库@ngtools/webpack@1.2.1应该使用@angular/compiler@^2.3.1（更多信息请参阅^ /sf/answers/1564206591/），因为我相信您自己已经弄清楚了。

这些库的作者可能有一些已弃用的 API，并且可能不支持后续版本中的当前代码，这就是您应该升级依赖项的原因之一。