我有一个角度为5的现有项目，尝试使用ng-serve为应用程序提供服务时出现此错误
这是package.json：
"dependencies": {
"@agm/core": "<=1.0.0-beta.3",
"@angular/animations": "^5.2.3",
"@angular/cdk": "^5.2.5",
"@angular/common": "^5.2.3",
"@angular/compiler": "^5.2.3",
"@angular/core": "^5.2.3",
"@angular/forms": "^5.2.3",
"@angular/http": "^5.2.3",
"@angular/material": "^5.2.5",
"@angular/platform-browser": "^5.2.3",
"@angular/platform-browser-dynamic": "^5.2.3",
"@angular/router": "^5.2.3",
"@aspnet/signalr": "^1.1.2",
"@ngx-translate/core": "^9.0.1",
"@types/googlemaps": "^3.30.16",
"bootstrap": "^4.3.1",
"core-js": "^2.6.5",
"moment": "^2.24.0",
"moment-timezone": "^0.5.23",
"ngx-bootstrap": "^2.0.2",
"rxjs": "^5.5.6",
"zone.js": "^0.8.29"
},
"devDependencies": {
"@angular/cli": "^1.6.7",
"@angular/compiler-cli": "^5.2.3",
"@angular/language-service": "^5.2.3",
"@types/jasmine": "^2.8.16",
"@types/jasminewd2": "^2.0.6",
"@types/node": "^6.14.3",
"codelyzer": "~4.1.0",
"jasmine-core": "~2.6.2",
"jasmine-spec-reporter": "~4.1.0",
"karma": "~1.7.0",
"karma-chrome-launcher": "~2.1.1",
"karma-cli": "~1.0.1",
"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": "~3.2.0",
"tslint": "~5.7.0",
"typescript": "~2.4.2"
}
我还安装了webpack 3.11，并且我搜索了许多其他解决方法，但没有任何帮助。 谢谢