diff --git a/src/portal/src/app/config/gc/gc.api.repository.ts b/src/portal/src/app/config/gc/gc.api.repository.ts
index 04de55d38..49cfe7e18 100644
--- a/src/portal/src/app/config/gc/gc.api.repository.ts
+++ b/src/portal/src/app/config/gc/gc.api.repository.ts
@@ -1,7 +1,7 @@
 
 import { Injectable } from '@angular/core';
 import { Http } from '@angular/http';
-import { Observable } from 'rxjs';
+import { throwError as observableThrowError, Observable } from 'rxjs';
 import { catchError, map } from 'rxjs/operators';
 
 
@@ -15,34 +15,34 @@ export class GcApiRepository {
 
     public postSchedule(param): Observable<any> {
         return this.http.post("/api/system/gc/schedule", param)
-            .pipe(catchError(err => Observable.throw(err)));
+            .pipe(catchError(error => observableThrowError(error)));
     }
 
     public putSchedule(param): Observable<any> {
         return this.http.put("/api/system/gc/schedule", param)
-            .pipe(catchError(err => Observable.throw(err)));
+            .pipe(catchError(error => observableThrowError(error)));
     }
 
     public getSchedule(): Observable<any> {
         return this.http.get("/api/system/gc/schedule")
-            .pipe(catchError(err => Observable.throw(err)))
+            .pipe(catchError(error => observableThrowError(error)))
             .pipe(map(response => response.json()));
     }
 
     public getLog(id): Observable<any> {
         return this.http.get("/api/system/gc/" + id + "/log")
-            .pipe(catchError(err => Observable.throw(err)));
+            .pipe(catchError(error => observableThrowError(error)));
     }
 
     public getStatus(id): Observable<any> {
         return this.http.get("/api/system/gc/" + id)
-            .pipe(catchError(err => Observable.throw(err)))
+            .pipe(catchError(error => observableThrowError(error)))
             .pipe(map(response => response.json()));
     }
 
     public getJobs(): Observable<any> {
         return this.http.get("/api/system/gc")
-            .pipe(catchError(err => Observable.throw(err)))
+            .pipe(catchError(error => observableThrowError(error)))
             .pipe(map(response => response.json()));
     }