Question

我刚刚将Angular cli和我的一个项目从7.0.7升级到7.1.0。

现在我尝试使用以下项目运行项目：

ng serve --proxy-config proxy.conf.json

并收到此消息

找不到模块'@ angular / compiler-cli / ngcc'错误：找不到

模块'@ angular / compiler-cli / ngcc'

at Function.Module._resolveFilename (internal/modules/cjs/loader.js:649:15)

at Function.Module._load (internal/modules/cjs/loader.js:575:25)

at Module.require (internal/modules/cjs/loader.js:705:19)

at require (internal/modules/cjs/helpers.js:14:16)

at Object.<anonymous> (/Users/path/myproject/node_modules/@ngtools/webpack/src/ngcc_processor.js:10:16)

at Module._compile (internal/modules/cjs/loader.js:799:30)

at Object.Module._extensions..js (internal/modules/cjs/loader.js:810:10)

at Module.load (internal/modules/cjs/loader.js:666:32)

at tryModuleLoad (internal/modules/cjs/loader.js:606:12)

at Function.Module._load (internal/modules/cjs/loader.js:598:3)

at Module.require (internal/modules/cjs/loader.js:705:19)

at require (internal/modules/cjs/helpers.js:14:16)

at Object.<anonymous> (/Users/path/myproject/node_modules/@ngtools/webpack/src/angular_compiler_plugin.js:23:26)

at Module._compile (internal/modules/cjs/loader.js:799:30)

at Object.Module._extensions..js (internal/modules/cjs/loader.js:810:10)

at Module.load (internal/modules/cjs/loader.js:666:32)

这是我的package.json

{
  "name": "myproject",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~7.0.0",
    "@angular/cdk": "7.3.7",
    "@angular/common": "~7.0.0",
    "@angular/compiler": "~7.0.0",
    "@angular/core": "~7.0.0",
    "@angular/forms": "~7.0.0",
    "@angular/http": "~7.0.0",
    "@angular/material": "^7.3.7",
    "@angular/platform-browser": "~7.0.0",
    "@angular/platform-browser-dynamic": "~7.0.0",
    "@angular/router": "~7.0.0",
    "angular": "^1.7.8",
    "bootstrap": "^4.3.1",
    "core-js": "^2.5.4",
    "font-awesome": "^4.7.0",
    "hammerjs": "^2.0.8",
    "jquery": "1.9.1",
    "ngx-gallery": "^5.9.1",
    "popper.js": "^2.0.0-next.4",
    "rxjs": "~6.3.3",
    "zone.js": "~0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^0.800.1",
    "@angular/cli": "^8.0.1",
    "@angular/compiler-cli": "~7.0.0",
    "@angular/language-service": "~7.0.0",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.1.1"
  }
}

Answer 1

在package.json文件中，将devDependencies中的@ angular / cli版本更改为：

tags

您的项目与devDependency之间版本不匹配。您可能使用了“ npm audit --force”或类似的自动更新命令，这可能已经更新了package.json文件中的devDependencies。

您还可以在devDependencies中使用angular cli版本7.3.5。只要确保开发版本和devDependencies中提到的版本兼容即可。请注意，本地角度/ cli版本在这里并不重要。

Answer 2

所有这些都不适合我，我正尝试从Angular 7升级到Angular 8，这是适合我的解决方案：

npm过时了。
npm更新。
npm install -g npm-check。
npm-check -u --skip-unused。
使用npm-check升级除sass之外的所有过时软件包。
npm更新。
如果您的应用程序上装有ViewChild，请确保将其编辑为@ViewChild(<name>, {static: true})。

Answer 3

我遇到了同样的错误，并通过更新@ angular / cli global解决了这个问题。喜欢：

npm uninstall -g @angular/cli
npm install -g @angular/cli

然后尝试创建新应用，并将一些依赖项从package.json文件复制到当前项目，因为npm install不会安装最新版本的软件包。然后

npm install

这解决了我的问题，但随后我找到了这个答案：update angular

Answer 4

希望这可以解决与安装相关的问题

ng update @angular/cli @angular/core

Answer 5

只需尝试以下方法： 1- ng serve不起作用或ngcc失败，只需输入：

the project folder -- app folder -- node_modules -- @angular -- compiler-cli -- ngcc

并删除ngcc锁定文件。然后ng服务，它将起作用。

升级Angular和项目后找不到编译器ngcc模块

5 个答案: