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Question

When i reject a promise in resolve ,this error will be shown on console. IN CONSOLE: EXCEPTION: Uncaught (in promise): null error_handler.js:56 ORIGINAL STACKTRACE: Error: Uncaught (in promise): null

@Injectable()
export class PaymentScheduleResolve implements Resolve<any> {
    constructor(private rtoService: RtoService,
                private rtoActivationService: RtoActivationService,
                private router:Router,
                private toastr: Toastr) {
    }
    resolve() {
        var self = this;
        return new Promise((resolve, reject) => {
            let rtoInfo = self.rtoActivationService.getRtoInfo();
            if (!rtoInfo) {
                reject("null");// This will produce error on console

            }
            else{
                self.rtoActivationService.getPaymentSchedules(rtoInfo.Id, rtoInfo.Data.RtoRentLength)
                    .then((res: any) => {
                        if (res.Response && res.Response.Code === 200) {
                            resolve(res.Response.Data);

                        }
                        else {
                            reject(null);// This will produce error on console
                        }
                    })
                    .catch((err: any) => {
                        console.log(err);
                        reject(null);// This will produce error on console
                    })
            }
        });

    }

Answer 1

Just use

resolve(null);

instead of

reject(null);

Answer 2

Use the following to reject the Resolver. This will redirect you to the default route.

reject({message: err , ngNavigationCancelingError: true});

Or you can redirect to the error page

this.router.navigateByUrl('errorPage');
resolve(false);