Migration to net 6 - not working for now

BusinessLogic/SearchLogic/Exceptions/FieldAliasMissingException.cs

@@ -0,0 +1,9 @@
+using System;
+
+namespace SearchApi.Exceptions
+{
+    public class FieldAliasMissingException : Exception
+    {
+        public FieldAliasMissingException(string message) : base(message: message) {}
+    }
+}