每当我要从命令提示符运行ng serve时，都会出现错误，提示找不到模块'@ angular / compiler-cli / ngcc，请帮助我在下面附加json文件！我收到的错误在下面，我的json文件是这个
请检查并帮助我，我是我的新手，虽然我更新了所有内容……
"name": "mdb-angular-free",
"version": "7.4.1",
"license": "MIT",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e",
"remove-demo-unix": "rm -rf projects && rm angular.json && mv angular-clean.json angular.json",
"remove-demo-windows": "rmdir /s /q projects && del angular.json && ren angular-clean.json angular.json"
},
"private": true,
"dependencies": {
"@agm/core": "^1.0.0-beta.6",
"@angular/animations": "^7.2.15",
"@angular/common": "^7.2.15",
"@angular/core": "^7.2.15",
"@angular/forms": "^7.2.15",
"@angular/http": "^7.2.15",
"@angular/platform-browser": "^7.2.15",
"@angular/platform-browser-dynamic": "^7.2.15",
"@angular/platform-server": "^7.2.15",
"@angular/router": "^7.2.15",
"@fortawesome/fontawesome-free": "^5.9.0",
"angular-bootstrap-md": "7.4.1",
"chart.js": "^2.8.0",
"classlist.js": "^1.1.20150312",
"core-js": "^2.6.9",
"font-awesome": "^4.7.0",
"hammerjs": "^2.0.8",
"rxjs": "^6.5.2",
"rxjs-compat": "^6.5.2",
"web-animations-js": "^2.3.1",
"zone.js": "^0.8.29"
},
"devDependencies": {
"@angular-devkit/build-angular": "^0.800.3",
"@angular/cli": "^8.0.3",
"@angular/compiler": "^7.2.15",
"@angular/compiler-cli": "^7.2.15",
"@angular/language-service": "^7.2.15",
"@types/jasmine": "^3.3.13",
"@types/jasminewd2": "~2.0.2",
"@types/node": "^10.12.30",
"codelyzer": "^4.0.1",
"jasmine-core": "~3.3.0",
"jasmine-spec-reporter": "~4.2.1",
"karma": "^4.1.0",
"karma-chrome-launcher": "~2.2.0",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^2.0.5",
"karma-jasmine": "~2.0.1",
"karma-jasmine-html-reporter": "^1.4.2",
"protractor": "^5.4.1",
"ts-node": "~7.0.1",
"tslint": "~5.11.0",
"typescript": "~3.1.6"
}
}
`
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.
C:\Users\Utsav\Angular-Tutorial-Agenda-App\agenda-app\start-here>ng serve
Cannot find module '@angular/compiler-cli/ngcc'
Error: Cannot find module '@angular/compiler-cli/ngcc'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:690:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object.<anonymous> (C:\Users\Utsav\Angular-Tutorial-Agenda-App\agenda-app\start-here\node_modules\@ngtools\webpack\src\ngcc_processor.js:10:16)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:690:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object.<anonymous> (C:\Users\Utsav\Angular-Tutorial-Agenda-App\agenda-app\start-here\node_modules\@ngtools\webpack\src\angular_compiler_plugin.js:23:26)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:690:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object.<anonymous> (C:\Users\Utsav\Angular-Tutorial-Agenda-App\agenda-app\start-here\node_modules\@ngtools\webpack\src\index.js:13:10)
at Module._compile (internal/modules/cjs/loader.js:776:30)
C:\Users\Utsav\Angular-Tutorial-Agenda-App\agenda-app\start-here>