From 5c66d9595196d1498f7c0629ad73c7d515ab1ba3 Mon Sep 17 00:00:00 2001
From: Sercan Yemen <sercanyemen@gmail.com>
Date: Wed, 4 Apr 2018 13:37:59 +0300
Subject: [PATCH] Warn the user about the missing sidebars in registry + Check
 if the sidebar exists before trying to close it

---
 src/@fuse/components/sidebar/sidebar.service.ts | 5 +++--
 src/app/main/navbar/navbar.component.ts         | 6 +++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/@fuse/components/sidebar/sidebar.service.ts b/src/@fuse/components/sidebar/sidebar.service.ts
index c101b56c..180e15ec 100644
--- a/src/@fuse/components/sidebar/sidebar.service.ts
+++ b/src/@fuse/components/sidebar/sidebar.service.ts
@@ -46,7 +46,7 @@ export class FuseSidebarService
         // Check if the sidebar exists
         if ( !this._registry[key] )
         {
-            console.error(`The sidebar with the key '${key}' doesn't exist in the registry.`);
+            console.warn(`The sidebar with the key '${key}' doesn't exist in the registry.`);
         }
 
         // Unregister the sidebar
@@ -57,13 +57,14 @@ export class FuseSidebarService
      * Return the sidebar with the given key
      *
      * @param key
+     * @returns {FuseSidebarComponent}
      */
     getSidebar(key): FuseSidebarComponent
     {
         // Check if the sidebar exists
         if ( !this._registry[key] )
         {
-            console.error(`The sidebar with the key '${key}' doesn't exist in the registry.`);
+            console.warn(`The sidebar with the key '${key}' doesn't exist in the registry.`);
 
             return;
         }
diff --git a/src/app/main/navbar/navbar.component.ts b/src/app/main/navbar/navbar.component.ts
index 7889d66d..2055e6cc 100644
--- a/src/app/main/navbar/navbar.component.ts
+++ b/src/app/main/navbar/navbar.component.ts
@@ -7,6 +7,7 @@ import { FuseSidebarService } from '@fuse/components/sidebar/sidebar.service';
 
 import { navigation } from 'app/navigation/navigation';
 import { FuseNavigationService } from '@fuse/components/navigation/navigation.service';
+import { FuseSidebarComponent } from '@fuse/components/sidebar/sidebar.component';
 
 @Component({
     selector     : 'fuse-navbar',
@@ -59,7 +60,10 @@ export class FuseNavbarComponent implements OnInit, OnDestroy
             (event) => {
                 if ( event instanceof NavigationEnd )
                 {
-                    this.sidebarService.getSidebar('navbar').close();
+                    if ( this.sidebarService.getSidebar('navbar') )
+                    {
+                        this.sidebarService.getSidebar('navbar').close();
+                    }
                 }
             }
         );