When running Karma to test my Angular4 application, I get this error Found the synthetic property @enterAnimation. Please include either "BrowserAnimationsModule" or "NoopAnimationsModule" in your application.
though I already imported the module in app.module.ts
// animation module
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
...
@NgModule({
imports: [...
BrowserAnimationsModule,
...
],
and in my component:
import { Component, OnInit } from '@angular/core';
import {
trigger,
state,
style,
animate,
transition
} from '@angular/animations';
@Component({
selector: 'app-about',
animations: [
trigger(
'enterAnimation', [
transition(':enter', [
style({ transform: 'translateX(100%)', opacity: 0 }),
animate('500ms', style({ transform: 'translateX(0)', opacity: 1 }))
]),
transition(':leave', [
style({ transform: 'translateX(0)', opacity: 1 }),
animate('500ms', style({ transform: 'translateX(100%)', opacity: 0 }))
])
]
),
trigger(
'enterAnimationVetically', [
transition(':enter', [
style({ transform: 'translateY(100%)', opacity: 0 }),
animate('500ms', style({ transform: 'translateY(0)', opacity: 1 }))
]),
transition(':leave', [
style({ transform: 'translateY(0)', opacity: 1 }),
animate('500ms', style({ transform: 'translateY(100%)', opacity: 0 }))
])]
)
],
...
The application runs perfectly with ng serve
yet, I got this error with karma.
Future readers: you can also get this exact error, when you forget to place
animations: [ <yourAnimationMethod()> ]
on your @Component
ts file.
that is if you're using [@yourAnimationMethod]
on the HTML template.