After trying to launch my Angular 5 page in the browser, I encountered an error message in the console.
ERROR Error: StaticInjectorError(AppModule)[AppComponent -> MatDialog]: StaticInjectorError(Platform: core)[AppComponent -> MatDialog]: NullInjectorError: No provider for MatDialog! at _NullInjector.webpackJsonp.../../../core/esm5/core.js._NullInjector.get
Can anyone help me figure out what I am missing?
If you encounter an error like this, it may be due to the fact that the service you are attempting to utilize has not been included in your @NgModule.
In order to employ the MatDialog service, you must go to your module file and incorporate MatDialogModule into the imports array:
import {MatDialogModule} from '@angular/material/dialog';
@NgModule({
imports: [MatDialogModule]
})
export class MyModule {}
You can access the import statement as well as further details on how to utilize the dialog by visiting this link: https://material.angular.io/components/dialog/api.
Occasionally, this error may appear when attempting to make an API call. It is important to verify the accuracy of the API endpoint and ensure there are no spaces in the URL.
Uncaught (in promise): Error: StaticInjectorError(AppModule)[LoginDialogComponent -> InjectionToken MatDialogData]:To avoid errors, make sure to provide data when using @Inject(MAT_DIALOG_DATA) data: any. Consider providing default data if none is supplied. Additionally, ensure that the dialog component name is included in the entryComponents section of the corresponding Module.
Make sure to declare variables outside the Constructor and initialize them inside the constructor for best practices.
This is an example of my code with an Interface:
export interface DoctorDetails
{
UserId:number,
DoctorId:number,
FirstName:string,
LastName:string,
Speciality:string,
EmailId:string,
PhoneNumber1:string,
PhoneNumber2:string,
CountryName:string,
StateName:string,
city:string,
AddressLine1:string,
HospitalName:string,
PrimaryMark:number
}Here is how I declare and initialize in my component:
export class DoctorDetailsComponent implements OnInit {
url:string="http://hospitalapi.com/api/doctor/GetDoctor/";
doctor:DoctorDetails[];//Declaration
constructor(private route:ActivatedRoute,
private http:HttpService
) {
const id = route.snapshot.paramMap.get("id");
console.log(id);
this.url = this.url + id;
this.doctor = new Array<DoctorDetails>();//Initialization
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