Node.js NPM安装在安装角度DEP时会导致404

我已经安装了最新的node.js 8.x和npm 5.6.0。在尝试执行

npm安装时

，我经常遇到以下错误：

npm错误！代码E404

npm错误！404未找到：@angular/router@5.2.0

每次我重试安装时，失败的模块都不一样，但最典型的是

@angular/forms@5.2.0

，

@angular/animations@5.2.0

和

@角度/平台-browser@5.2.0

• 我有一个正常的网络连接
• 我已经运行了

  npm配置集注册表https://registry.npmjs.org/

• 我删除了

  节点\u模块

  文件夹
• 我已删除缓存：

  npm cache clean--force

• npm搜索

  会找到模块：

C:\windows\system32>npm搜索@angular/router

姓名|描述|作者|日期|版本|关键词

@角度/路由器|角度- 角形路由器

还有什么不对劲

以下是完整的package.json：

{
  "name": "App",
  "angular-cli": {},
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build --env=scapp",
    "build-local": "ng build --env=dev",
    "build-nonevis": "ng build --env=nonevis",
    "test": "ng test",
    "lint": "ng lint",
    "lint-fix": "ng lint --fix",
    "e2e": "ng e2e"
  },
  "dependencies": {
    "@angular/animations": "5.2.0",
    "@angular/common": "^5.2.0",
    "@angular/compiler": "^5.2.0",
    "@angular/core": "^5.2.0",
    "@angular/forms": "5.2.0",
    "@angular/http": "5.2.0",
    "@angular/platform-browser": "5.2.0",
    "@angular/platform-browser-dynamic": "5.2.0",
    "@angular/router": "5.2.0",
    "@ngx-translate/core": "9.1.1",
    "@ngx-translate/http-loader": "2.0.1",
    "@types/arcgis-js-api": "^4.4.0",
    "@types/node": "9.4.0",
    "angular2-esri-loader": "^1.0.0",
    "cerialize": "^0.1.18",
    "chart.js": "2.7.1",
    "core-js": "^2.5.1",
    "esri-loader": "^1.1.0",
    "fullcalendar": "3.7.0",
    "intl": "^1.2.5",
    "jquery": "3.2.1",
    "moment": "2.18.1",
    "nanoscroller": "0.8.7",
    "ngx-perfect-scrollbar": "5.3.4",
    "primeng": "5.2.0",
    "quill": "1.1.8",
    "rxjs": "5.5.2",
    "web-animations-js": "2.3.1",
    "zone.js": "0.8.18"
  },
  "devDependencies": {
    "@angular/cli": "^1.6.5",
    "@angular/compiler-cli": "^5.2.0",
    "@types/jasmine": "2.5.53",
    "@types/jasminewd2": "2.0.2",
    "@types/node": "6.0.60",
    "codelyzer": "4.0.1",
    "jasmine-core": "2.6.4",
    "jasmine-spec-reporter": "4.1.1",
    "karma": "1.7.1",
    "karma-chrome-launcher": "2.1.1",
    "karma-cli": "1.0.1",
    "karma-jasmine": "1.1.0",
    "karma-jasmine-html-reporter": "0.2.2",
    "karma-coverage-istanbul-reporter": "1.3.0",
    "protractor": "5.1.2",
    "ts-node": "3.2.0",
    "tslint": "5.7.0",
    "typescript": "2.4.2"
  }
}

---

该问题是由本地文件

.npmrc

引起的，该文件包含一行

always auth=true

。删除此行解决了问题。我不知道404错误与身份验证有什么关系，但注意到在我切换到镜像注册表后，它突然报告了E401而不是官方注册表中的E404。

在我的例子中，通过在命令中添加@latest解决了这个问题

---

npm安装-g@angular/cli@latest

npm的可能副本似乎没有下降，因此我认为这与此无关