关于 ng add @angular/cli 的问题

Question

在项目根目录下执行ng add @angular/cli时，报错：

The package that you are trying to add does not support schematics. You can try using a different version of the package or contact the package author to add ng-add support.

我的package.json:

{
  "name": "app",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular-devkit/schematics": "^8.0.0",
    "@angular/animations": "^8.0.2",
    "@angular/cdk": "^8.0.0",
    "@angular/common": "^8.0.2",
    "@angular/compiler": "^8.0.2",
    "@angular/core": "^8.0.2",
    "@angular/fire": "^5.2.1",
    "@angular/forms": "^8.0.2",
    "@angular/material": "^8.0.0",
    "@angular/material-moment-adapter": "^8.0.0",
    "@angular/platform-browser": "^8.0.2",
    "@angular/platform-browser-dynamic": "^8.0.2",
    "@angular/router": "^8.0.2",
    "@asymmetrik/ngx-leaflet": "^5.0.2",
    "@ngrx/data": "^8.0.1",
    "@ngrx/effects": "^8.0.1",
    "@ngrx/entity": "^8.0.1",
    "@ngrx/router-store": "^8.1.0",
    "@ngrx/store": "^8.0.1",
    "@ngrx/store-devtools": "^8.0.1",
    "@types/leaflet": "^1.4.7",
    "body-parser": "^1.18.2",
    "core-js": "^2.4.1",
    "express": "^4.16.2",
    "firebase": "^6.6.0",
    "hammerjs": "^2.0.8",
    "leaflet": "^1.5.1",
    "leaflet-routing-machine": "^3.2.12",
    "moment": "^2.22.2",
    "rxjs": "^6.3.3",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.800.0",
    "@angular/cli": "^8.0.1",
    "@angular/compiler-cli": "^8.0.2",
    "@angular/language-service": "^8.0.2",
    "@ngrx/schematics": "^8.0.1",
    "@types/express": "^4.0.39",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^5.0.1",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "^4.1.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "ngrx-store-freeze": "^0.2.4",
    "protractor": "^6.0.0",
    "ts-node": "~3.2.0",
    "tslint": "~5.7.0",
    "typescript": "~3.4.5"
  }
}

有什么提示吗？提前谢谢你。

Answer 1

你不添加@angular/cli到你的项目，你通过cmd或命令行安装它到你的系统，然后调用它来创建和启动应用程序。

npm install -g @angular/cli
ng new my-dream-app
cd my-dream-app
ng serve

这里是关于 angular cli 的官方文档：Angular Cli

Answer 2

这很奇怪...我也遇到过。

基本上，我只是重新安装（更新）了 Angular Cli。然后对 firebase-tools 做同样的事情。

ng 新项目在项目根目录 > ng 添加 @angular/fire

起初它给了我另一个错误（没有记录它，没想到）。运行命令再次响应：

"The package that you are trying to add does not support schematics. You can try using a different version of the package or contact the package author to add ng-add support."

所以我： 1 - 删除了项目。 2 - 重新启动计算机。 3 - ng new'ed anotherProject.

这次 ng add @angular/etc 工作正常。

如果一切都失败了，请按 cntrl-alt-del。这可能就足够了。

希望这些信息对某人有所帮助（因为我确定您现在已经重新启动了）。

关于 ng add @angular/cli 的问题

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