Angular4 blank screen after importing component

Question

I am facing the following problem: I have generated a JHipster Application and now need to import a component inside another component like shown in this tutorial:

https://coursetro.com/courses/12/Learn-Angular-4-from-Scratch/lessons/2

I have a TeamMember.component

import { Component, OnInit, OnDestroy } from '@angular/core';
import { ActivatedRoute, Router } from '@angular/router';
import { Subscription } from 'rxjs/Rx';
import { JhiEventManager, JhiParseLinks, JhiAlertService } from 'ng-jhipster';

import { Team } from './team.model';
import { TeamService } from './team.service';
import { ITEMS_PER_PAGE, Principal, ResponseWrapper } from '../../shared';

@Component({
selector: 'jhi-team',
templateUrl: './team.component.html'
})
export class TeamComponent implements OnInit, OnDestroy {
teams: Team[];
currentAccount: any;
eventSubscriber: Subscription;

constructor(
    private teamService: TeamService,
    private jhiAlertService: JhiAlertService,
    private eventManager: JhiEventManager,
    private principal: Principal
) {
}

loadAll() {
    this.teamService.query().subscribe(
        (res: ResponseWrapper) => {
            this.teams = res.json;
        },
        (res: ResponseWrapper) => this.onError(res.json)
    );
}
ngOnInit() {
    this.loadAll();
    this.principal.identity().then((account) => {
        this.currentAccount = account;
    });
    this.registerChangeInTeams();
    this.teamService.query();
}

ngOnDestroy() {
    this.eventManager.destroy(this.eventSubscriber);
}

trackId(index: number, item: Team) {
    return item.id;
}
registerChangeInTeams() {
    this.eventSubscriber = this.eventManager.subscribe('teamListModification', (response) => this.loadAll());
}

private onError(error) {
    this.jhiAlertService.error(error.message, null, null);
}
}

and a Team.component, where I want to import the teammembers.

import { NgModule, CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
import { RouterModule } from '@angular/router';
import { EntrestratsSharedModule } from '../../shared';
import {ButtonModule} from 'primeng/primeng';
import {DataListModule} from 'primeng/primeng';
import {TeamMemberComponent} from '../team-member/team-member.component';

import {
TeamService,
TeamPopupService,
TeamComponent,
TeamDetailComponent,
TeamDialogComponent,
TeamPopupComponent,
TeamDeletePopupComponent,
TeamDeleteDialogComponent,
teamRoute,
teamPopupRoute,
} from './';

const ENTITY_STATES = [
...teamRoute,
...teamPopupRoute,
];

@NgModule({
imports: [
    EntrestratsSharedModule,
    ButtonModule,
    DataListModule,
    RouterModule.forRoot(ENTITY_STATES, { useHash: true }),
],
declarations: [
    TeamComponent,
    TeamMemberComponent,
    TeamDetailComponent,
    TeamDialogComponent,
    TeamDeleteDialogComponent,
    TeamPopupComponent,
    TeamDeletePopupComponent,
],
entryComponents: [
    TeamComponent,
    TeamDialogComponent,
    TeamPopupComponent,
    TeamDeleteDialogComponent,
    TeamDeletePopupComponent,
],
providers: [
    TeamService,
    TeamPopupService,
],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
export class EntrestratsTeamModule {}

My Problem is the following:

If I do this as described in the tutorial and as shown in my code snippets, I only get a blank page for this app. I don't get an error, just a white page for the whole app.

Has anyone experienced this and some ideas for me? I sit on this the whole day now and don't have an idea what I could do with this.

Thank you in advance for all suggestions!

Karsten

EDIT:

Maybe it helps if i share my package.json:

 { "name": "entrestrats", "version": "0.0.1", "description": "Description for entrestrats", "private": true, "license": "UNLICENSED", "cacheDirectories": [ "node_modules" ], "dependencies": { "@angular-devkit/schematics": "0.0.34", "@angular/animations": "4.3.2", "@angular/common": "4.3.2", "@angular/compiler": "4.3.2", "@angular/core": "4.3.2", "@angular/forms": "4.3.2", "@angular/http": "4.3.2", "@angular/platform-browser": "4.3.2", "@angular/platform-browser-dynamic": "4.3.2", "@angular/router": "4.3.2", "@ng-bootstrap/ng-bootstrap": "1.0.0-beta.5", "bootstrap": "4.0.0-beta", "core-js": "2.4.1", "font-awesome": "4.7.0", "jquery": "3.2.1", "ng-jhipster": "0.2.12", "ng2-webstorage": "1.8.0", "ngx-cookie": "1.0.0", "ngx-infinite-scroll": "0.5.1", "popper.js": "1.11.0", "primeng": "^4.3.0", "reflect-metadata": "0.1.10", "rxjs": "5.4.2", "swagger-ui": "2.2.10", "tether": "1.4.0", "zone.js": "0.8.16" }, "devDependencies": { "@angular/cli": "1.4.2", "@angular/compiler-cli": "4.3.2", "@types/jasmine": "2.5.53", "@types/node": "8.0.18", "angular2-template-loader": "0.6.2", "awesome-typescript-loader": "3.2.2", "browser-sync": "2.18.13", "browser-sync-webpack-plugin": "1.2.0", "codelyzer": "3.1.2", "copy-webpack-plugin": "4.0.1", "css-loader": "0.28.4", "exports-loader": "0.6.4", "extract-text-webpack-plugin": "3.0.0", "file-loader": "0.11.2", "generator-jhipster": "4.10.2", "html-loader": "0.5.0", "html-webpack-plugin": "2.30.1", "jasmine-core": "2.7.0", "karma": "1.7.1", "karma-chrome-launcher": "2.2.0", "karma-coverage": "1.1.1", "karma-intl-shim": "1.0.3", "karma-jasmine": "1.1.0", "karma-junit-reporter": "1.2.0", "karma-notify-reporter": "1.0.1", "karma-remap-istanbul": "0.6.0", "karma-sourcemap-loader": "0.3.7", "karma-webpack": "2.0.4", "merge-jsons-webpack-plugin": "1.0.11", "ngc-webpack": "3.2.2", "node-sass": "4.5.3", "postcss-loader": "2.0.6", "proxy-middleware": "0.15.0", "puppeteer": "0.10.2", "rimraf": "2.6.1", "sass-loader": "6.0.6", "sourcemap-istanbul-instrumenter-loader": "0.2.0", "string-replace-webpack-plugin": "0.1.3", "style-loader": "0.18.2", "to-string-loader": "1.1.5", "tslint": "5.5.0", "tslint-loader": "3.5.3", "typescript": "2.5.2", "uglifyjs-webpack-plugin": "1.0.0-beta.2", "web-app-manifest-loader": "0.1.1", "webpack": "3.6.0", "webpack-dev-server": "2.8.2", "webpack-merge": "4.1.0", "webpack-notifier": "1.5.0", "webpack-visualizer-plugin": "0.1.11", "write-file-webpack-plugin": "4.1.0", "xml2js": "0.4.17" }, "engines": { "node": ">=6.9.0" }, "scripts": { "lint": "tslint --type-check --project './tsconfig.json' -e 'node_modules/**'", "lint:fix": "yarn run lint -- --fix", "ngc": "ngc -p tsconfig-aot.json", "cleanup": "rimraf target/{aot,www}", "clean-www": "rimraf target//www/app/{src,target/}", "start": "yarn run webpack:dev", "serve": "yarn run start", "build": "yarn run webpack:prod", "test": "karma start src/test/javascript/karma.conf.js", "test:watch": "yarn test -- --watch", "webpack:dev": "yarn run webpack-dev-server -- --config webpack/webpack.dev.js --progress --inline --hot --profile --port=9060 --watch-content-base", "webpack:build:main": "yarn run webpack -- --config webpack/webpack.dev.js --progress --profile", "webpack:build": "yarn run cleanup && yarn run webpack:build:main", "webpack:prod:main": "yarn run webpack -- --config webpack/webpack.prod.js --progress --profile", "webpack:prod": "yarn run cleanup && yarn run webpack:prod:main && yarn run clean-www", "webpack:test": "yarn run test", "webpack-dev-server": "node --max_old_space_size=4096 node_modules/webpack-dev-server/bin/webpack-dev-server.js", "webpack": "node --max_old_space_size=4096 node_modules/webpack/bin/webpack.js" } 

Answer 1

听起来很疯狂，但尝试导入： templateUrl：' ./ team.component.html'，而不导入'./'templateUrl：'team.component.html'，并在选择器上方添加moduleId：module.id 。