ng serve命令中面临警告，对于此警告，我在网页中看不到任何内容。我们正在使用Core Ui Pro Admin Template。完整警告消息列表：
WARNING in ./node_modules/@coreui/angular/fesm5/coreui-angular.js 493:33-51
"export 'ɵɵdefineInjectable' was not found in '@angular/core'
WARNING in ./node_modules/@coreui/angular/fesm5/coreui-angular.js 816:30-48
"export 'ɵɵdefineInjectable' was not found in '@angular/core'
WARNING in ./node_modules/@coreui/angular/fesm5/coreui-angular.js 493:137-145
"export 'ɵɵinject' was not found in '@angular/core'
WARNING in ./node_modules/@coreui/angular/fesm5/coreui-angular.js 493:155-163
"export 'ɵɵinject' was not found in '@angular/core'
我的ng版本：
Angular CLI: 7.3.9 Node: 10.16.3 OS: win32 x64 Angular: 7.2.15 ... animations, common, compiler, compiler-cli, core, forms ... http, language-service, platform-browser ... platform-browser-dynamic, router Package Version ----------------------------------------------------------- @angular-devkit/architect 0.13.9 @angular-devkit/build-angular 0.13.9 @angular-devkit/build-optimizer 0.13.9 @angular-devkit/build-webpack 0.13.9 @angular-devkit/core 7.3.9 @angular-devkit/schematics 7.3.9 @angular/cli 7.3.9 @ngtools/webpack 7.3.9 @schematics/angular 7.3.9 @schematics/update 0.13.9 rxjs 6.5.4 typescript 3.1.6 webpack 4.29.0
package.json文件：{ "name": "@coreui/coreui-pro-angular-admin-template-starter", "version": "2.2.0", "description": "CoreUI Pro Angular 2+ Admin Template", "author": { "name": "Łukasz Holeczek", "url": "http://holeczek.pl", "github": "https://github.com/mrholek", "twitter": "https://twitter.com/lukaszholeczek" }, "contributors": [ { "name": "Andrzej Kopański", "url": "https://github.com/xidedix" } ], "homepage": "https://coreui.io/pro/angular", "copyright": "Copyright 2018 creativeLabs Łukasz Holeczek", "license": "https://coreui.io/pro/license/", "scripts": { "ng": "ng", "start": "ng serve", "build": "ng build --prod", "test": "ng test", "lint": "ng lint", "e2e": "ng e2e" }, "private": true, "dependencies": { "@agm/core": "^1.0.0-beta.5", "@amcharts/amcharts4": "^4.6.0", "@angular/animations": "^7.1.1", "@angular/common": "^7.1.1", "@angular/compiler": "^7.1.1", "@angular/core": "^7.1.1", "@angular/forms": "^7.1.1", "@angular/http": "^7.1.1", "@angular/platform-browser": "^7.1.1", "@angular/platform-browser-dynamic": "^7.1.1", "@angular/router": "^7.1.1", "@coreui/angular": "^2.2.0", "@coreui/coreui-plugin-chartjs-custom-tooltips": "^1.2.0", "@coreui/coreui-pro": "^2.1.3", "@coreui/icons": "0.3.0", "@ng-bootstrap/ng-bootstrap": "^4.1.1", "@ngrx/effects": "^7.4.0", "@ngrx/entity": "^7.4.0", "@ngrx/store": "^7.4.0", "@ngrx/store-devtools": "^7.4.0", "@ngx-translate/core": "^11.0.1", "@ngx-translate/http-loader": "^4.0.0", "@types/lodash": "^4.14.144", "@types/number-to-words": "^1.2.0", "angular-bootstrap-md": "^8.1.1", "angular-calendar": "^0.26.4", "angular-datatables": "^6.0.0", "angular-in-memory-web-api": "^0.8.0", "angular2-datatable": "^0.6.0", "angular2-ladda": "^2.0.0", "angular2-text-mask": "^9.0.0", "angular2-toaster": "^7.0.0", "bootstrap": "^4.1.3", "chart.js": "2.7.3", "core-js": "^2.5.7", "datatables.net": "^1.10.19", "datatables.net-dt": "^1.10.19", "date-fns": "^1.29.0", "flag-icon-css": "3.2.1", "font-awesome": "^4.7.0", "jquery": "^3.3.1", "lodash": "^4.17.15", "moment": "^2.22.2", "mutationobserver-shim": "^0.3.2", "ng-select": "^1.0.1", "ng2-ace-editor": "^0.3.8", "ng2-charts": "^1.6.0", "ng2-dragula": "^1.5.0", "ngrxstoredata": "^2.0.0", "ngx-bootstrap": "^3.1.2", "ngx-bootstrap-modal": "^2.0.1", "ngx-json-viewer": "^2.4.0", "ngx-pagination": "^4.1.0", "ngx-perfect-scrollbar": "^7.1.0", "ngx-quill": "^4.3.3", "ngx-ui-loader": "^7.2.2", "number-to-words": "^1.2.4", "quill": "^1.3.6", "rxjs": "^6.4.0", "rxjs-compat": "^6.3.3", "simple-line-icons": "^2.4.1", "spinkit": "^1.2.5", "ts-helpers": "^1.1.2", "zone.js": "^0.8.26" }, "devDependencies": { "@angular-devkit/build-angular": "^0.13.8", "@angular/cli": "^7.3.6", "@angular/compiler-cli": "^7.1.1", "@angular/language-service": "^7.1.1", "@ngrx/schematics": "^7.4.0", "@types/datatables.net": "^1.10.17", "@types/jasmine": "^3.3.0", "@types/jasminewd2": "^2.0.6", "@types/jquery": "^3.3.29", "@types/node": "^10.12.11", "codelyzer": "^4.5.0", "jasmine-core": "^2.99.0", "jasmine-spec-reporter": "^4.2.1", "karma": "^4.0.1", "karma-chrome-launcher": "^2.2.0", "karma-coverage-istanbul-reporter": "^2.0.4", "karma-jasmine": "^2.0.1", "karma-jasmine-html-reporter": "^1.4.0", "node-sass": "^4.12.0", "protractor": "^5.4.1", "ts-node": "^7.0.1", "tslint": "^5.11.0", "typescript": "3.1.x" }, "engines": { "node": ">= 8.9.4", "npm": ">= 5.6.0" } }