jhipster生成的应用程序为什么不使用角度材料2？

Question

我在提及Angular Material。但角度材质2在Jhipster生成的应用程序中不起作用。我找不到任何错误日志。

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import {NgModule} from '@angular/core';
import {
    MatAutocompleteModule,
    MatButtonModule,
    MatButtonToggleModule,
    MatCardModule,
    MatCheckboxModule,
    MatChipsModule,
    MatDatepickerModule,
    MatDialogModule,
    MatDividerModule,
    MatExpansionModule,
    MatFormFieldModule,
    MatGridListModule,
    MatIconModule,
    MatInputModule,
    MatListModule,
    MatMenuModule,
    MatPaginatorModule,
    MatProgressBarModule,
    MatProgressSpinnerModule,
    MatRadioModule,
    MatSelectModule,
    MatSidenavModule,
    MatSliderModule,
    MatSlideToggleModule,
    MatSnackBarModule,
    MatSortModule,
    MatTableModule,
    MatTabsModule,
    MatToolbarModule,
    MatTooltipModule,
    MatStepperModule,
} from '@angular/material';
import {MatNativeDateModule, MatRippleModule} from '@angular/material';
import {CdkTableModule} from '@angular/cdk/table';
import {CdkAccordionModule} from '@angular/cdk/accordion';
import {A11yModule} from '@angular/cdk/a11y';
import {BidiModule} from '@angular/cdk/bidi';
import {OverlayModule} from '@angular/cdk/overlay';
import {PlatformModule} from '@angular/cdk/platform';
import {ObserversModule} from '@angular/cdk/observers';
import {PortalModule} from '@angular/cdk/portal';

/**
 * NgModule that includes all Material modules that are required to serve the demo-app.
 */
@NgModule({
    exports: [
        MatAutocompleteModule,
        MatButtonModule,
        MatButtonToggleModule,
        MatCardModule,
        MatCheckboxModule,
        MatChipsModule,
        MatTableModule,
        MatDatepickerModule,
        MatDialogModule,
        MatDividerModule,
        MatExpansionModule,
        MatFormFieldModule,
        MatGridListModule,
        MatIconModule,
        MatInputModule,
        MatListModule,
        MatMenuModule,
        MatPaginatorModule,
        MatProgressBarModule,
        MatProgressSpinnerModule,
        MatRadioModule,
        MatRippleModule,
        MatSelectModule,
        MatSidenavModule,
        MatSlideToggleModule,
        MatSliderModule,
        MatSnackBarModule,
        MatSortModule,
        MatStepperModule,
        MatTabsModule,
        MatToolbarModule,
        MatTooltipModule,
        MatNativeDateModule,
        CdkTableModule,
        A11yModule,
        BidiModule,
        CdkAccordionModule,
        ObserversModule,
        OverlayModule,
        PlatformModule,
        PortalModule,
    ]
})
export class DemoMaterialModule {}

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vandor.scss

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/* after changing this file run 'yarn run webpack:build' */
$fa-font-path: '~font-awesome/fonts';
@import 'theme.scss';

@import '~@angular/material/prebuilt-themes/deeppurple-amber.css';
/***************************
put Sass variables here:
eg $input-color: red;
****************************/
// Override Boostrap variables
@import "bootstrap-variables";
// Import Bootstrap source files from node_modules
@import 'node_modules/bootstrap/scss/bootstrap';
@import 'node_modules/font-awesome/scss/font-awesome';

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app.main.ts

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import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { ProdConfig } from './blocks/config/prod.config';
import { JsueAppModule } from './app.module';

import 'hammerjs';
ProdConfig();
if (module['hot']) {
    module['hot'].accept();
}

platformBrowserDynamic().bootstrapModule(JsueAppModule)
.then((success) => console.log(`Application started`))
.catch((err) => console.error(err));

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我在google上找到了很多方法，但没有一种可以解决我的问题。 我怀疑它的webpack编译问题，但我不知道该怎么做。

也许是angluar版本兼容性问题？

我很无奈。我花了几天时间。谁可以帮助我？