Angular 2 Material MdSnackBar no Provider
Import MdSnackBarModule
then add MdSnackBarModule
inside your imports in the app.module.ts file
If you have version "@angular/material": "2.0.0-beta.12" or higher, you should import MatSnackBarModule
import {MatSnackBarModule} from '@angular/material';
// Use a more specific import if you're using "@angular/material": "8.0.0" and higher
// import {MatSnackBarModule} from '@angular/material/snack-bar';
...
@NgModule({
imports: [
...
MatSnackBarModule
],
...