[Angular-CLI-6]无法确定“服务"目标的单个项目 [英] [Angular-CLI-6]Could not determine single project for 'Serve' target

问题描述

我在 ng update @angular/cli 命令的帮助下更新了我的 angular-cli.在那之后，我遇到了一个错误，因为无法确定服务器"目标的单个项目，并带有以下错误跟踪.

I have updated my angular-cli with the help of ng update @angular/cli command. After that, I have got an error as Could not determine single project for 'server' target with following error trace.

Could not determine a single project for the 'serve' target.
Error: Could not determine a single project for the 'serve' target.
    at ServeCommand.getProjectNamesByTarget (E:\Angular\Projects\projectName\node_modules\@angular\cli\models\architect-command.js:175:19)
    at ServeCommand.<anonymous> (E:\Angular\Projects\projectName\node_modules\@angular\cli\models\architect-command.js:128:51)
    at Generator.next (<anonymous>)
    at E:\Angular\Projects\projectName\node_modules\@angular\cli\models\architect-command.js:7:71
    at new Promise (<anonymous>)
    at __awaiter (E:\Angular\Projects\projectName\node_modules\@angular\cli\models\architect-command.js:3:12)
    at ServeCommand.runArchitectTarget (E:\Angular\Projects\projectName\node_modules\@angular\cli\models\architect-command.js:121:16)
    at ServeCommand.<anonymous> (E:\Angular\Projects\projectName\node_modules\@angular\cli\commands\serve.js:34:25)
    at Generator.next (<anonymous>)
    at E:\Angular\Projects\projectName\node_modules\@angular\cli\commands\serve.js:7:71

这种行为让我很困惑.有关更多信息，我还在此处添加了我的 package.json.

This behaviour is quite confusing me. For more information i am also adding my package.json here.

{
  "name": "ProjectName",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build --prod",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.2.0",
    "@angular/common": "^5.2.0",
    "@angular/compiler": "^5.2.0",
    "@angular/core": "^5.2.0",
    "@angular/forms": "^5.2.0",
    "@angular/http": "^5.2.0",
    "@angular/platform-browser": "^5.2.0",
    "@angular/platform-browser-dynamic": "^5.2.0",
    "@angular/router": "^5.2.0",
    "core-js": "^2.4.1",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "~6.0.8",
    "@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",
    "@angular-devkit/build-angular": "~0.6.8"
  }
}

在这里，我明白为什么会发生这个错误.谁能帮我解决一下?

Here, I am getting why this error is occur. Can anyone help me to resolve it?

推荐答案

您是否遵循了更新过程的所有三个步骤?

Did you follow all three steps of the update process?

更新一般分为 3 个步骤，并且会利用新的 ng 更新工具.

The update generally follows 3 steps, and will take advantage of the new ng update tool.

1) 更新@angular/cli:

1) Update @angular/cli:

npm install -g @angular/cli
npm install @angular/cli
ng update @angular/cli

2) 更新你的 Angular 框架包:

2) Update your Angular framework packages:

ng update @angular/core

3) 更新其他依赖

有关更多信息，请参阅本文底部:https://blog.angular.io/version-6-of-angular-now-available-cc56b0efa7a4

See toward the bottom of this post for more information: https://blog.angular.io/version-6-of-angular-now-available-cc56b0efa7a4

有关这组步骤，另请参阅此链接:https://update.angular.io/

See also this link for the set of steps: https://update.angular.io/

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