端口 xxx 已被使用。使用“--port”指定不同的端口

Question

在 Windows、angular 上 6：我尝试使用许多端口但没有任何端口工作。我总是收到错误消息：端口 xxx 已在使用中。使用“--port”指定不同的端口。

我也研究并尝试了很多方法： - 开启防火墙 - 使用 netstat 查看端口，没有任何进程使用它们 - 更改 angular-cli 的其他版本，package.json 中的打字稿但是没有解决办法。

这是我的 package.json 文件：

"dependencies": {
    "@angular-redux/store": "^9.0.0",
    "@angular/animations": "^6.1.0",
    "@angular/cdk": "^5.0.3",
    "@angular/common": "^6.1.0",
    "@angular/compiler": "^6.1.0",
    "@angular/core": "^6.1.0",
    "@angular/forms": "^6.1.0",
    "@angular/http": "^6.1.0",
    "@angular/material": "^5.0.3",
    "@angular/platform-browser": "^6.1.0",
    "@angular/platform-browser-dynamic": "^6.1.0",
    "@angular/router": "^6.1.0",
    "@mdi/font": "^3.6.95",
    "@ng-bootstrap/ng-bootstrap": "^4.0.2",
    "@ng-select/ng-select": "^2.14.0",
    "@types/file-saver": "^2.0.1",
    "adal-angular4": "^4.0.9",
    "babel-polyfill": "^6.23.0",
    "bootstrap": "^4.1.3",
    "classlist.js": "^1.1.20150312",
    "core-js": "^2.5.4",
    "d3": "^5.9.2",
    "daterangepicker": "^3.0.5",
    "fabric": "^3.1.0",
    "file-saver": "^2.0.2",
    "font-awesome": "^4.7.0",
    "highcharts": "^6.1.4",
    "jquery": "^3.4.1",
    "material-design-icons": "^3.0.1",
    "moment": "^2.24.0",
    "msal": "^1.0.1",
    "ng2-ckeditor": "^1.2.0",
    "ng2-file-upload": "^1.3.0",
    "ngrx-message-bus": "^1.0.4",
    "ngx-bootstrap": "^3.1.2",
    "ngx-color-picker": "^8.0.1",
    "ngx-image-cropper": "^1.3.9",
    "ngx-moment": "^3.4.0",
    "ngx-owl-carousel-o": "^1.1.5",
    "ngx-toastr": "^9.1.1",
    "node-sass": "^4.12.0",
    "redux": "^4.0.1",
    "rxjs": "6.3.3",
    "rxjs-compat": "^6.5.2",
    "tassign": "^1.0.0",
    "web-animations-js": "^2.3.1",
    "zone.js": "^0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.7.0",
    "@angular/cli": "~6.1.0",
    "@angular/compiler-cli": "^6.1.0",
    "@angular/language-service": "^6.1.0",
    "@types/d3": "^5.7.2",
    "@types/jasmine": "~2.8.6",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "~4.2.1",
    "jasmine-core": "^3.3.0",
    "jasmine-spec-reporter": "^4.2.1",
    "karma": "^3.1.3",
    "karma-chrome-launcher": "^2.2.0",
    "karma-cli": "^2.0.0",
    "karma-coverage-istanbul-reporter": "~2.0.0",
    "karma-jasmine": "^2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "protractor": "^5.4.1",
    "rxjs-tslint": "^0.1.6",
    "ts-node": "~5.0.1",
    "tslint": "^5.11.0",
    "typescript": "^2.9.2",
    "uuid": "^3.3.2"
  }
}

PS E:\FSoft\source\Sample\App.Client> ng serve

Port 4200 is already in use. Use '--port' to specify a different port.

PS E:\FSoft\source\Sample\App.Client> ng serve --port 4201

Port 4201 is already in use. Use '--port' to specify a different port.

PS E:\FSoft\source\Sample\App.Client> ng serve --port 4216

Port 4216 is already in use. Use '--port' to specify a different port.

PS E:\FSoft\source\Sample\App.Client> ng serve --port 4305

Port 4305 is already in use. Use '--port' to specify a different port.

PS E:\FSoft\source\Sample\App.Client> ng serve --port 1234

Port 1234 is already in use. Use '--port' to specify a different port.

PS E:\FSoft\source\Sample\App.Client> ng serve --port 9999

Port 9999 is already in use. Use '--port' to specify a different port.

Answer 1

我已经解决了这个问题。这是我的解决方案：

移除node_modules，包括package-lock.json
运行 npm i，然后我遇到了这个错误：

ERROR in node_modules/@angular-redux/store/lib/src/components/ng-redux.d.ts(10,31): error > TS2420: Class 'NgRedux' incorrectly implements interface 'ObservableStore'. Property '[Symbol.observable]' is missing in type 'NgRedux'.
我通过命令重新安装redux@4.0.1：npm i redux@4.0.1
完成后，我开始 ng serve。没问题。

感谢您的关注。

端口 xxx 已被使用。使用“--port”指定不同的端口

Port xxx is already in use. Use '--port' to specify a different port

angular6