template parse error is not a known element (ionic) - list

Question

thanks for the help since now!
I'm having trouble with this problem, i'm doing an expensable list, follow the code from my app.module.ts:
import { BrowserModule } from '#angular/platform-browser';
import { ErrorHandler, NgModule } from '#angular/core';
import { IonicApp, IonicErrorHandler, IonicModule } from 'ionic-angular';
import { SplashScreen } from '#ionic-native/splash-screen';
import { StatusBar } from '#ionic-native/status-bar';
import { MyApp } from './app.component';
import { ExpansivoComponent } from '../components/expansivo/expansivo';
#NgModule({
declarations: [
MyApp,
ExpansivoComponent
],
imports: [
BrowserModule,
IonicModule.forRoot(MyApp)
],
bootstrap: [IonicApp],
entryComponents: [
MyApp
],
providers: [
StatusBar,
SplashScreen,
{provide: ErrorHandler, useClass: IonicErrorHandler}
]
})
export class AppModule {}
this is my code from html page:
<ion-header>
<ion-navbar>
<ion-title>listacli</ion-title>
</ion-navbar>
</ion-header>
<ion-content padding>
<ion-list>
<ion-item *ngFor="let item of items">
<ion-thumbnail item-start>
<img src="assets/img/listacli.png">
</ion-thumbnail>
<h2>My Neighbor Totoro</h2>
<p>Hayao Miyazaki • 1988</p>
<expansivo></expansivo>
<button ion-button clear item-end>View</button>
</ion-item>
</ion-list>
</ion-content>
i already tryied a lot of answers from stackoverflow, but anything could help :(
this is the error
If you guys need any code, just ask, thanks !

Answer 1

you have to add your ExpansivoComponent to the entryComponents
#NgModule({
declarations: [
MyApp,
ExpansivoComponent
],
imports: [
BrowserModule,
IonicModule.forRoot(MyApp)
],
bootstrap: [IonicApp],
entryComponents: [
MyApp,
ExpansivoComponent
],