Question

使用Angular CLI创建新组件时出现了一个奇怪的错误，当我使用ng g c navbar时抛出错误：

 core_1.PriorityQueue is not a constructor
TypeError: core_1.PriorityQueue is not a constructor
    at new TaskScheduler (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular-devkit/schematics/src/engine/task.js:20:23)
    at SchematicEngine.createContext (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular-devkit/schematics/src/engine/engine.js:81:31)
    at SchematicImpl.call (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular-devkit/schematics/src/engine/schematic.js:35:38)
    at Promise (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/tasks/schematic-run.js:73:23)
    at new Promise (<anonymous>)
    at Class.run (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/tasks/schematic-run.js:72:16)
    at Class.run (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/commands/generate.js:161:33)
    at resolve (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/ember-cli/lib/models/command.js:261:20)
    at new Promise (<anonymous>)
    at Class.validateAndRun (/home/praveen/Desktop/Angular_Projects/a2website/node_modules/@angular/cli/ember-cli/lib/models/command.js:240:12)

任何人都可以帮助我吗？。提前谢谢。

Answer 1

在你的package.json中，你会看到：

security:
  firewalls:
    firewall_api:
      pattern: '^/(.*)+$'
      host:    '^api\.mypage\.com$'
      stateless: true
      anonymous: false
      guard:
        # list of authenticators to try
        authenticators:
          - 'My\Bridge\Symfony\Security\Authenticator\Guard\JWTTokenAuthenticator'
          - 'My\Bridge\Symfony\Security\Authenticator\Guard\FacebookAuthenticator'
        # This authenticator's start() method is called
        entry_point: 'My\Bridge\Symfony\Security\Authenticator\Guard\JWTTokenAuthenticator'

运行更新的命令：

"devDependencies": {
   "@angular-devkit/core": "OLD VERSION",  <----- once you run the command this will update
    ...
 }

Answer 2

更新角度cli或确保运行最新版本的角度cli。

要安装最新版本的angular cli，请使用以下命令：

npm install -g @angular/cli@latest

创建新组件抛出错误：PriorityQueue不是构造函数

2 个答案: