Question

我在使用npm install时遇到了一些麻烦。

npm install package-name工作正常，但是当我手动在package.json文件中添加新的依赖项（通过git拉动）然后只尝试npm install时，它会返回

up to date in 4.2 sec

并没有安装包。

仅供参考：我使用git来提取package.json文件。所以包名中没有任何问题。当我拉动并尝试仅使用npm install进行安装时，它无法正常工作。

我的package.json是：

{
  "name": "ap",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^4.0.0",
    "@angular/compiler": "^4.0.0",
    "@angular/core": "^4.0.0",
    "@angular/forms": "^4.0.0",
    "@angular/http": "^4.0.0",
    "@angular/platform-browser": "^4.0.0",
    "@angular/platform-browser-dynamic": "^4.0.0",
    "@angular/platform-server": "^4.1.3",
    "@angular/router": "^4.0.0",
    "@ng-bootstrap/ng-bootstrap": "^1.0.0-alpha.26",
    "@ngx-translate/core": "^6.0.1",
    "@ngx-translate/http-loader": "0.0.3",
    "@types/underscore": "^1.8.0",
    "angular-datatables": "^4.1.0",
    "angular2-busy": "^2.0.4",
    "angular2-jwt": "^0.2.3",
    "angular2-toaster": "^4.0.0",
    "chart.js": "^2.6.0",
    "core-js": "^2.4.1",
    "datatables.net": "^1.10.15",
    "datatables.net-dt": "^1.10.15",
    "jquery": "^3.2.1",
    "ng2-charts": "^1.5.0",
    "ng2-simple-timer": "^1.3.1",
    "rxjs": "^5.1.0",
    "underscore": "^1.8.3",
    "zone.js": "^0.8.4"
  },
  "devDependencies": {
    "@angular/animations": "^4.1.3",
    "@angular/cli": "1.0.4",
    "@angular/compiler-cli": "^4.0.0",
    "@types/datatables.net": "^1.10.1",
    "@types/jasmine": "2.5.38",
    "@types/jquery": "^2.0.45",
    "@types/node": "~6.0.60",
    "codelyzer": "~2.0.0",
    "jasmine-core": "~2.5.2",
    "jasmine-spec-reporter": "~3.2.0",
    "karma": "~1.4.1",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^0.2.0",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.0",
    "ts-node": "~2.0.0",
    "tslint": "~4.5.0",
    "typescript": "~2.2.0"
  }
}

Answer 1

正如@ j7an所说，问题必须取决于环境。我有同样的问题，我不知道我的NODE_ENV是如何设置生产的。无论如何，我这样做了:(如this answer中所述）

删除package-lock.json
删除node_modules

之后：

npm install
npm install --only=dev

这必须解决问题。

Answer 2

我根据书籍＃34; Modern JavaScript＆＃34;运行export NODE_ENV=production时遇到了这个问题。在删除node_modules，package.json以及清除npm cache之后没有解决问题，我从这个stackoverflow条目中找到了答案：npm install won't install devDependencies

要解决此问题，我运行export NODE_ENV=删除了生产标记。一旦我这样做，我就能再次安装dev依赖项。希望这会有所帮助。

npm install显示最新而不是安装包

2 个答案: