NullReferenceException

Property/Models/Container.cs

@@ -0,0 +1,34 @@
+using System.Text.Json.Serialization;
+
+namespace View_by_Distance.Property.Models;
+
+public class Container
+{
+
+    protected readonly int _G;
+    protected readonly int _R;
+    protected readonly List<Item> _Items;
+    protected readonly string _SourceDirectory;
+    public int G => _G;
+    public List<Item> Items => _Items;
+    public int R => _R;
+    public string SourceDirectory => _SourceDirectory;
+
+    [JsonConstructor]
+    public Container(int g, int r, List<Item> items, string sourceDirectory)
+    {
+        _G = g;
+        _R = r;
+        _Items = items;
+        _SourceDirectory = sourceDirectory;
+    }
+
+    public Container(int g, int r, string sourceDirectory)
+    {
+        _G = g;
+        _R = r;
+        _Items = new();
+        _SourceDirectory = sourceDirectory;
+    }
+
+}