1

Src/Core/ECS/EntitiesService.cs

@@ -161,7 +161,17 @@ namespace BITKit.Entities
 
                 if (instances.TryGetValue(h0, out var v0) is false)
                 {
-                    instances[h0] = v0 = _entitiesInternal[id].ServiceProvider.GetRequiredService<T>();
+                    try
+                    {
+                        instances[h0] = v0 = _entitiesInternal[id].ServiceProvider.GetRequiredService<T>();
+                    }
+                    catch (KeyNotFoundException)
+                    {
+                        _logger.LogWarning($"Missing Entity {id},Ignore for now");
+
+                        hashset.Remove(id);
+                        break;
+                    }
                 }
 
                 array[i] = Unsafe.As<T>(v0);

Src/Core/ECS/Entity.cs

@@ -39,7 +39,7 @@ namespace BITKit.Entities
 
         public void Dispose()
         {
-            _serviceProvider.Dispose();
+            _serviceProvider?.Dispose();
         }
     }
 }

Src/Core/Extensions/IEnumerable.cs

@@ -152,20 +152,11 @@ namespace BITKit
             list.Remove(t);
             return list.ToArray();
         }
-        public static bool TryRemove<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey t)
-        {
-            return self.ContainsKey(t) && self.Remove(t);
-        }
+
+        public static bool TryRemove<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey t) => self.Remove(t);
         public static void Set<TKey, TValue>(this IDictionary<TKey, TValue> self, TKey key, TValue value)
         {
-            if (self.ContainsKey(key))
-            {
-                self[key] = value;
-            }
-            else
-            {
-                self.Add(key, value);
-            }
+            self[key] = value;
         }
         public static TValue Get<TKey,TValue>(this IDictionary<Type,TValue> self)
         {

Src/Core/UX/IUXSnackBar.cs

@@ -0,0 +1,16 @@
+
+namespace Net.BITKit.UX.SnackBar
+{
+    public enum Severity
+    {
+        Normal,
+        Info,
+        Success,
+        Warning,
+        Error
+    }
+    public interface ISnackBar
+    {
+        void Add(string message, Severity severity = Severity.Normal);
+    }
+}

Src/Core/UX/IUXSnackBar.cs.meta

@@ -0,0 +1,11 @@
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