如标题中所述，在构建我的角度应用程序时遇到了此类问题：
ERROR in node_modules/@angular/core/core.d.ts:219:18 - error TS2314: Generic type 'ɵɵFactoryDef' requires 2 type argument(s).
我尝试过更新角度，降级，重置node_modules等。类似的帖子here并没有解决。
我确定这是微不足道的，但我指望社区提供慷慨的帮助?
这是我的ng --version结果：
Angular CLI: 9.1.9
Node: 12.12.0
OS: win32 x64
Angular: 9.1.11
... core
Ivy Workspace: Yes
Package Version
-------------------------------------------------------------
@angular-devkit/architect 0.901.9
@angular-devkit/build-angular 0.901.9
@angular-devkit/build-optimizer 0.901.9
@angular-devkit/build-webpack 0.901.9
@angular-devkit/core 9.1.9
@angular-devkit/schematics 9.1.9
@angular/cli 9.1.9
@angular/common 9.0.4
@angular/compiler 9.0.4
@angular/compiler-cli 9.0.4
@angular/forms 9.0.4
@angular/language-service 9.0.4
@angular/platform-browser 9.0.4
@angular/platform-browser-dynamic 9.0.4
@angular/router 9.0.4
@ngtools/webpack 9.1.9
@schematics/angular 9.1.9
@schematics/update 0.901.9
rxjs 6.5.4
typescript 3.7.5
webpack 4.42.0
以及 package.json 中的@angular依赖项：
"dependencies": {
"@angular/common": "~9.0.3",
"@angular/compiler": "~9.0.3",
"@angular/core": "^9.1.11",
"@angular/forms": "~9.0.3",
"@angular/platform-browser": "~9.0.3",
"@angular/platform-browser-dynamic": "~9.0.3",
"@angular/router": "~9.0.3",
感谢您的帮助！