如何安装"@angular/core@^2.2.1 的对等体"？

Question

在我的 Ionic 2 项目中，我尝试 npm install ng2-pdf-viewer --save

这导致： ├── 未满足的对等依赖关系 @angular/core@2.1.1

└─┬ ng2-pdf-viewer@1.0.1

└── @types/pdf@0.0.31

npm WARN ng2-pdf-viewer@1.0.1 需要 @angular/core@^2.2.1 的对等体 但没有安装任何内容。

我该如何解决这个问题？

我的包.json包括：

"dependencies": {
    "@angular/common": "2.1.1",
    "@angular/compiler": "2.1.1",
    "@angular/compiler-cli": "2.1.1",
    "@angular/core": "2.1.1",
    "@angular/forms": "2.1.1",
    "@angular/http": "2.1.1",
    "@angular/platform-browser": "2.1.1",
    "@angular/platform-browser-dynamic": "2.1.1",
    "@angular/platform-server": "2.1.1",
    "@ionic/storage": "1.1.6",
    "@types/moment": "^2.13.0",
    "font-awesome": "^4.7.0",
    "ionic-angular": "2.0.0-rc.3",
    "ionic-native": "2.2.3",
    "ionicons": "3.0.0",
    "jquery": "^3.1.1",
    "moment": "^2.17.1",
    "ng2-pdf-viewer": "^1.0.1",
    "pdfjs-dist": "^1.6.483",
    "rxjs": "5.0.0-beta.12",
    "ts-md5": "^1.2.0",
    "zone.js": "0.6.26"
  }

Answer 1

要使用ng2-pdf-viewer您需要拥有angular 2.2.1或更多。您可能需要更新package.json中的所有角度依赖项[angular/core，http，compiler-cli等]才能2.2.1^和检查。您可以在此处参考最新的 ionic 2 软件包依赖项。