Error: Please add a @NgModule annotation Angular

Question

I'm getting the below error. any help your be appreciated!.

ERROR: Unexpected value 'Ng2DropdownModule in C:/Users/userName/../node_modules/ng2-material-dropdown/src/modules/ng2-dropdown.module.d.ts' imported by the module 'TagInputModule in C:/Users/userName/../node_modules/ngx-chips/ngx-chips.d.ts'. Please add a @NgModule annotation.

This is my app.module.ts

import { JwPaginationModule } from 'jw-angular-pagination';
import * as Highcharts from 'highcharts';
import { TagInputModule } from 'ngx-chips';
import { TemplateCategoryConfigComponent } from './template-manager/template-category-config/template-category-config.component';

declare var require: any;

@NgModule({
   entryComponents: [
       components...
   ],
   declarations: [
       components...
   ],
   imports: [
       IonicModule,
       CommonModule,
       FormsModule,
       TagInputModule,
       JwPaginationModule
   ],
   exports: [
       components...

   ],
   providers: [
       { provide: HTTP_INTERCEPTORS, useClass: HttpService, multi: true },
           /* File, */ Camera, WidgetService, DataPushService
   ]
})
export class AppModule {

   constructor(private library: FaIconLibrary) {
       this.library.addIconPacks(fas, far);
   }

   static forRoot(options?: EnvironmentOptions): ModuleWithProviders {
       return ({
           ngModule: IdcWidgetModule,
           providers: [
               EnvironmentService,
               {
                   provide: FOR_ROOT_OPTIONS_TOKEN,
                   useValue: options
               },
               {
                   provide: LAZY_MAPS_API_CONFIG,
                   useValue: { apiKey: options.googleMapAPIKey }
               },
           ]
       });
   }

}

This is my package.json

  "name": "app-lib",
  "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": {
    "@agm/core": "^1.1.0",
    "@angular/animations": "^9.1.12",
    "@angular/common": "^9.1.12",
    "@angular/compiler": "^9.1.12",
    "@angular/core": "^9.1.12",
    "@angular/fire": "^6.0.3",
    "@angular/forms": "^9.1.12",
    "@angular/platform-browser": "^9.1.12",
    "@angular/platform-browser-dynamic": "^9.1.12",
    "@angular/router": "^9.1.12",
    "@capacitor/cli": "^1.5.3",
    "@capacitor/core": "^1.5.3",
    "@circlon/angular-tree-component": "^10.0.0",
    "@fortawesome/angular-fontawesome": "^0.6.1",
    "@fortawesome/fontawesome-svg-core": "^1.2.32",
    "@fortawesome/free-regular-svg-icons": "^5.15.1",
    "@fortawesome/free-solid-svg-icons": "^5.15.1",
    "@ionic-native/camera": "^5.27.0",
    "@ionic-native/core": "^5.27.0",
    "@ionic-native/file": "^5.27.0",
    "@ionic/angular": "^5.3.5",
    "@ionic/angular-toolkit": "^2.3.3",
    "@ionic/storage": "^2.3.1",
    "@ng-idle/core": "^10.0.0-beta.1",
    "@ng-idle/keepalive": "^10.0.0-beta.1",
    "@swimlane/ngx-datatable": "^17.1.0",
    "ngx-chips": "^2.2.2",
    "tslib": "^1.14.0",
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^0.901.12",
    "@angular-devkit/build-ng-packagr": "^0.901.12",
    "@angular/cli": "^9.1.12",
    "@angular/compiler-cli": "^9.1.12",
    "@angular/language-service": "^9.1.12",
    "@types/jasmine": "~3.3.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "^12.12.64",
    "codelyzer": "^5.2.2",
    "jasmine-core": "~3.4.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.1.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.5.4",
    "ng-packagr": "^9.1.5",
    "protractor": "^5.4.4",
    "ts-node": "~7.0.0",
    "tslint": "~5.15.0",
    "typescript": "~3.8.3"
  }
}

I'm stuck with this issue for more then 2 days. So, Any help would be appreciated.