角度：无法解析组件的所有参数

问题描述

我从demo下载了一个简单的Angular应用。使用npm i和ng serve之后，我不断收到此消息。一直在尝试修复它，因为我在其他地方没有找到任何解决方案，因此我会在这里得到一些帮助。其他组件也发生同样的事情。

introduction.component.ts

import { Component } from '@angular/core';
import { Router } from '@angular/router';


@Component({
  selector: 'codelab-quiz-intro',templateUrl: './introduction.component.html',styleUrls: ['./introduction.component.scss']
})
export class IntroductionComponent {

  constructor(private router: Router) {}

  startQuiz() {
    this.router.navigateByUrl('/question/1');
  }
}
  

app.module.ts

import { NgModule,NO_ERRORS_SCHEMA,CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
// import { CommonModule } from "@angular/common";
import {browserAnimationsModule} from "@angular/platform-browser/animations";
import {browserModule} from "@angular/platform-browser";
import { ReactiveFormsModule } from '@angular/forms';
import { MatCardModule } from '@angular/material/card';
import { MaTradioModule,MAT_RAdio_DEFAULT_OPTIONS } from '@angular/material/radio';
import { MatIconModule } from '@angular/material/icon';
import { MatButtonModule } from '@angular/material/button';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { AccordionModule } from 'ngx-bootstrap/accordion';
import { Route,Router,RouterModule } from '@angular/router';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { IntroductionComponent } from './containers/introduction/introduction.component';
import { QuestionComponent } from './containers/question/question.component';
import * as QuestionComponent2 from './components/question/question.component';
import { ResultsComponent } from './containers/results/results.component';

const routes: Route[] = [
  { path: 'intro',component: IntroductionComponent,pathMatch: 'full' },{ path: 'question',component: QuestionComponent,{ path: 'question/:questionId',{ path: 'results',component: ResultsComponent,{ path: '',redirectTo: 'intro',pathMatch: 'full' }
];


@NgModule({
  declarations: [
    AppComponent,IntroductionComponent,QuestionComponent,QuestionComponent2.QuestionComponent,ResultsComponent,],imports: [
    // CommonModule,browserModule,browserAnimationsModule,AppRoutingModule,ReactiveFormsModule,MatCardModule,MaTradioModule,MatIconModule,MatButtonModule,NgbModule,AccordionModule.forRoot()
  ],providers: [{
    provide: MAT_RAdio_DEFAULT_OPTIONS,useValue: { color: 'accent' },}],bootstrap: [ AppComponent ],schemas: [
    CUSTOM_ELEMENTS_SCHEMA,NO_ERRORS_SCHEMA
  ]
})
export class AppModule { }

app-routing.module.ts

import { NgModule } from '@angular/core';
import { Route,RouterModule } from '@angular/router';
import { IntroductionComponent } from './containers/introduction/introduction.component';
import { QuestionComponent } from './containers/question/question.component';
import { ResultsComponent } from './containers/results/results.component';

const routes: Route[] = [
  { path: 'intro',pathMatch: 'full' }
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],exports: [RouterModule]
})
export class AppRoutingModule { }

解决方法

请在"emitDecoratorMetadata": true文件上添加此配置tsconfig.spec.json，它将起作用。

"compilerOptions": {
    "emitDecoratorMetadata": true,