Question

我目前在5.2版中有一个关于package.json文件的Angular项目（“ @ angular / core”：“ ^ 5.2.0”）。

由于出现此错误消息，我无法运行ng serve：serve命令需要在Angular项目中运行，但是找不到项目定义。

我的问题是：我是否必须更新当前的Angular版本和软件包才能使用此应用程序？如果是的话，为什么我不能在这种配置下使用它？

任何帮助将不胜感激。

-> PACKAGE.JSON <-

{
  "name": "default",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng app",
    "build": "ng build && node server.js",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.2.5",
    "@angular/cdk": "^5.2.1",
    "@angular/common": "^5.2.0",
    "@angular/compiler": "^5.2.0",
    "@angular/core": "^5.2.0",
    "@angular/flex-layout": "^2.0.0-beta.12",
    "@angular/forms": "^5.2.0",
    "@angular/http": "^5.2.0",
    "@angular/material": "^5.2.1",
    "@angular/platform-browser": "^5.2.0",
    "@angular/platform-browser-dynamic": "^5.2.0",
    "@angular/router": "^5.2.0",
    "@swimlane/ngx-datatable": "^11.1.7",
    "chart.js": "^2.7.2",
    "core-js": "^2.4.1",
    "hammerjs": "^2.0.8",
    "ng2-charts": "^1.6.0",
    "npm": "^5.7.1",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "1.6.8",
    "@angular/compiler-cli": "^5.2.0",
    "@angular/language-service": "^5.2.0",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "~2.5.3"

Answer 1

移动到有角度的项目位置，然后提供 ng服务，它将起作用。

错误是因为您试图在不同的位置运行角度项目。

cd move_to_your_angular_application_folder

Answer 2

您不是从根位置（即package.json所在的位置）运行项目。

尝试移动到该位置并运行生成/服务。

无法提供Angular 5.2版本

2 个答案: