Issue
I was trying to use angular material to open a side nav when I click on the toolbar icon. Everything works fine until I try to actually open the navbar, I got the error:
Unexpected directive ‘MatDrawer in @angular/material/sidenav/index.d.ts’ imported by the module ‘AppModule in /src/app/app.module.ts’. Please add a @NgModule annotation.
Here are the npm modules (package.json):
"@angular/animations": "^9.1.11",
"@angular/cdk": "^9.2.4",
"@angular/common": "~9.1.11",
"@angular/compiler": "~9.1.11",
"@angular/core": "~9.1.11",
"@angular/forms": "~9.1.11",
"@angular/material": "^9.2.4",
"@angular/platform-browser": "~9.1.11",
"@angular/platform-browser-dynamic": "~9.1.11",
"@angular/router": "~9.1.11",
"jQuery": "^1.7.4",
"jquery": "^3.5.1",
"rxjs": "~6.5.4",
"tslib": "^1.10.0",
"zone.js": "~0.10.2"
here is my app.module:
import { MatDrawer } from '@angular/material/sidenav';
import { MatDrawerContainer } from '@angular/material/sidenav';
@NgModule({
declarations: [
AppComponent,
DressesComponent,
LoadingSpinnerComponent,
Toolbar,
ButtonToggle,
Sidenav
],
imports: [
BrowserModule,
AppRoutingModule,
HttpClientModule,
BrowserAnimationsModule,
MatTableModule,
MatSelectModule,
MatDialogModule,
MatInputModule,
MatToolbarModule,
MatIconModule,
MatButtonToggleModule,
MatDrawer,
MatDrawerContainer
],
providers: [DressesService, SidenavService],
bootstrap: [AppComponent]
})
export class AppModule { }
and app.component.html:
<html dir="rtl" lang="he">
<toolbar></toolbar>
<side-nav></side-nav>
</html>
Solution
To import components and directives etc, you import their modules, not the actual components and directives. So you need to import MatSidenavModule instead of MatDrawer, MatDrawerContainer:
import {MatSidenavModule} from '@angular/material/sidenav';
@NgModule({
declarations: [
AppComponent,
DressesComponent,
LoadingSpinnerComponent,
Toolbar,
ButtonToggle,
Sidenav
],
imports: [
BrowserModule,
AppRoutingModule,
HttpClientModule,
BrowserAnimationsModule,
MatTableModule,
MatSelectModule,
MatDialogModule,
MatInputModule,
MatToolbarModule,
MatIconModule,
MatButtonToggleModule,
MatSidenavModule //<-- this one
],
providers: [DressesService, SidenavService],
bootstrap: [AppComponent]
})
export class AppModule { }