在本地运行现有的Angular项目

Question

我对Angular非常陌生，我正在尝试在我的机器上运行Angular的现有项目。我做了很多测试，并关注了很多文章。但是无法运行我的项目。

我有这样的项目文件：

我在系统上安装了nodejs。并按照文章中的以下说明进行操作：

更改目录到我们的仓库

cd myproject

根据项目自述文件安装Cli。

npm安装-g @ angular / cli @ 1.3.2

用npm安装仓库

npm安装

安装TypeScript类型

npm运行打字安装-给出错误：npm ERR！缺少脚本：打字安装

然后，我尝试以下操作：

npm install --global用于以下内容：

webpack (npm install --global webpack)
webpack-dev-server (npm install --global webpack-dev-server)
karma (npm install --global karma-cli)
protractor (npm install --global protractor)
typings (npm install --global typings)
typescript (npm install --global typescript)

启动服务器

npm start

-给出多个错误信息：例如：

npm ERR! code ELIFECYCLE

-为此，我尝试“清理npm缓存”，然后删除“ node_modules”，然后使用以下命令再次安装软件包：“ npm install --save”

然后再试一次：npm start它给了我同样的错误“ npm ERR! code ELIFECYCLE”

另外，此错误消息：

Cannot find module 'webpack/lib/node/NodeTemplatePlugin'

为此，我尝试了“ npm uninstall -g webpack”，然后：npm install --save-dev webpack webpack-cli html-webpack-plugin webpack-dev-server webpack-dev-middleware从以下位置：错误：找不到模块' webpack / lib / node / NodeTemplatePlugin'

尝试再次运行它：

这次它给了我以下错误：

ERROR in ./node_modules/raw-loader!./node_modules/@angular/cli/node_modules/post
css-loader/lib??embedded!./node_modules/sass-loader/lib/loader.js??ref--8-3!./sr
c/styles.scss
Module build failed: Error: Cannot find module 'node-sass'

为此，Cannot find module 'node-sass'我再次进行了搜索：

并找到以下命令：npm install node-sass

我尝试过，然后再次尝试

现在我收到了 ERROR in No NgModule metadata found for 'AppModule'.

为此，我尝试了git cli问题8798中的以下内容

删除node_modules文件夹

rm -rf node_modules

删除webpack

npm remove webpack

清洁npm cahe

npm cache clean --force

安装最新版本的angular cli

npm install --save-dev @angular/cli@latest

安装依赖项

npm install

现在只是测试

npm start our ng serve

现在它开始给我：找不到本地工作区文件（'angular.json'），它根本无法工作。解决此问题的方法：我做了：ng update @angular/cli --migrate-only --from=1.7.4

哪个删除错误：“找不到本地工作区文件（'angular.json'）”，但现在它给了我错误

ERROR in src/app/web-player/albums/album-context-menu/album-context-menu.compon
nt.ts(13,14): error TS2515: Non-abstract class 'AlbumContextMenuComponent' does
not implement inherited abstract member 'getAllTracks' from class 'ContextMenuC
mponent<Album>'.
src/app/web-player/artists/artist-context-menu/artist-context-menu.component.ts
13,14): error TS2515: Non-abstract class 'ArtistContextMenuComponent' does not
mplement inherited abstract member 'getAllTracks' from class 'ContextMenuCompon
nt<Artist>'.
src/app/web-player/context-menu/context-menu.component.ts(58,34): error TS2304:
Cannot find name 'TrackList'.
src/app/web-player/playlists/playlist-context-menu/playlist-context-menu.compon
nt.ts(15,14): error TS2515: Non-abstract class 'PlaylistContextMenuComponent' d
es not implement inherited abstract member 'getAllTracks' from class 'ContextMe
uComponent<Playlist>'.

我在这里想念什么？我从3天开始尝试了很多文章，但无法运行。

此外，我看到了不同类型的警告和消息。

项目中的自述文件：

# Client

This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 1.3.2.

## Development server

Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.

## Code scaffolding

Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.

## Build

Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory. Use the `-prod` flag for a production build.

## Running unit tests

Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).

## Running end-to-end tests

Run `ng e2e` to execute the end-to-end tests via [Protractor](http://www.protractortest.org/).
Before running the tests make sure you are serving the app via `ng serve`.

## Further help

To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI README](https://github.com/angular/angular-cli/blob/master/README.md).

Package.json文件：

{
  "name": "client",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve --proxy-config proxy.conf.json --host 0.0.0.0",
    "build": "ng build --prod --sourcemaps --build-optimizer",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.1.2",
    "@angular/common": "^5.1.2",
    "@angular/compiler": "^5.1.2",
    "@angular/core": "^5.1.2",
    "@angular/forms": "^5.1.2",
    "@angular/http": "^5.1.2",
    "@angular/platform-browser": "^5.1.2",
    "@angular/platform-browser-dynamic": "^5.1.2",
    "@angular/router": "^5.1.2",
    "bootstrap": "^4.0.0-beta",
    "chart.js": "^2.7.0",
    "copy-to-clipboard": "^3.0.8",
    "core-js": "^2.5.1",
    "hammerjs": "^2.0.8",
    "moment": "^2.18.1",
    "ng-lazyload-image": "^3.3.3",
    "ngx-color-picker": "^4.3.4",
    "normalize.css": "^7.0.0",
    "perfect-scrollbar": "^0.8.1",
    "popper.js": "^1.12.5",
    "raven-js": "^3.18.1",
    "rxjs": "^5.4.2",
    "svg4everybody": "^2.1.4",
    "tooltip.js": "^1.1.5",
    "zone.js": "^0.8.18"
  },
  "devDependencies": {
    "@angular/cli": "^1.6.2",
    "@angular/compiler-cli": "^5.1.2",
    "@angular/language-service": "^5.1.2",
    "@types/hammerjs": "^2.0.35",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "^2.0.3",
    "@types/node": "~6.0.60",
    "@types/popper.js": "^1.10.1",
    "@types/youtube": "0.0.31",
    "@types/clipboard": "^1.5.35",
    "cheerio": "^1.0.0-rc.2",
    "codelyzer": "~3.1.1",
    "gulp": "^3.9.1",
    "gulp-clean": "^0.3.2",
    "gulp-filter": "^5.0.0",
    "gulp-rename": "^1.2.2",
    "gulp-svgmin": "^1.2.3",
    "gulp-svgstore": "^6.1.0",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "^1.7.1",
    "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",
    "material-design-icons": "^3.0.1",
    "protractor": "~5.1.2",
    "ts-node": "~3.2.0",
    "tslint": "~5.7.0",
    "typescript": "~2.4.2",
    "webpack-bundle-analyzer": "^2.9.0"
  }
}

Answer 1

运行以下命令

 npm uninstall -g @angular/cli
 npm cache verify
 npm install -g @angular/cli@next
 npm update

然后

 ng serve 

我希望它现在有效。如果您遇到任何错误，请发表评论。

Answer 2

那应该容易多了……

按原样使用您的项目文件

跑 npm install

由于您拥有该package.json文件，它将读取所有依赖项并安装它们。

然后npm audit fix在需要时运行（终端会告诉你）。

祝你好运！

Answer 3

尝试ng serve --open 它将编译您的项目并直接在浏览器中打开