Fix nullref exception

.vscode/tasks.json

@@ -10,6 +10,17 @@
                 "${workspaceFolder}/Jellyfin.Server/Jellyfin.Server.csproj"
             ],
             "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "api tests",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "test",
+                "${workspaceFolder}/tests/MediaBrowser.Api.Tests/MediaBrowser.Api.Tests.csproj"
+            ],
+            "problemMatcher": "$msCompile"
         }
+
     ]
-}
+}

Emby.Server.Implementations/Library/LibraryManager.cs

@@ -111,12 +111,6 @@ namespace Emby.Server.Implementations.Library
         /// <value>The comparers.</value>
         private IBaseItemComparer[] Comparers { get; set; }
 
-        /// <summary>
-        /// Gets or sets the active item repository
-        /// </summary>
-        /// <value>The item repository.</value>
-        public IItemRepository ItemRepository { get; set; }
-
         /// <summary>
         /// Gets or sets the active image processor
         /// </summary>
@@ -1843,7 +1837,7 @@ namespace Emby.Server.Implementations.Library
                     x.Hash = blurhash;
                 });
 
-            ItemRepository.SaveImages(item);
+            _itemRepository.SaveImages(item);
 
             RegisterItem(item);
         }
@@ -1918,7 +1912,7 @@ namespace Emby.Server.Implementations.Library
         {
             Task.Run(() =>
             {
-                var items = ItemRepository.GetItemList(new InternalItemsQuery {
+                var items = _itemRepository.GetItemList(new InternalItemsQuery {
                     Recursive = true
                 });
                 foreach (var item in items)