Add project files

src/ChainOfResponssibility/Validators/UserEntities/Exceptions/NotFoundException.cs

@@ -0,0 +1,26 @@
+using System;
+
+namespace ChainOfResponssibility.Validators.UserEntities
+{
+    internal class NotFoundException : Exception
+    {
+        private int iD;
+
+        public NotFoundException()
+        {
+        }
+
+        public NotFoundException(string message) : base(message)
+        {
+        }
+
+        public NotFoundException(int iD)
+        {
+            this.iD = iD;
+        }
+
+        public NotFoundException(string message, Exception innerException) : base(message, innerException)
+        {
+        }
+    }
+}