diff --git a/AirBomber/AirBomber/FormPlaneCollection.cs b/AirBomber/AirBomber/FormPlaneCollection.cs
index 2c07129..947e102 100644
--- a/AirBomber/AirBomber/FormPlaneCollection.cs
+++ b/AirBomber/AirBomber/FormPlaneCollection.cs
@@ -7,6 +7,10 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
+using Microsoft.VisualBasic.Logging;
+using AirBomber.Exceptions;
+using Serilog;
+using Log = Serilog.Log;
 
 namespace AirBomber
 {
diff --git a/AirBomber/AirBomber/PlaneNotFoundException.cs b/AirBomber/AirBomber/PlaneNotFoundException.cs
index 211f8a9..5dc61a2 100644
--- a/AirBomber/AirBomber/PlaneNotFoundException.cs
+++ b/AirBomber/AirBomber/PlaneNotFoundException.cs
@@ -5,7 +5,7 @@ using System.Runtime.Serialization;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace AirBomber
+namespace AirBomber.Exceptions
 {
     [Serializable]
     internal class PlaneNotFoundException: ApplicationException
diff --git a/AirBomber/AirBomber/StorageOverflowException.cs b/AirBomber/AirBomber/StorageOverflowException.cs
index 32e408b..8ae7b29 100644
--- a/AirBomber/AirBomber/StorageOverflowException.cs
+++ b/AirBomber/AirBomber/StorageOverflowException.cs
@@ -5,7 +5,7 @@ using System.Runtime.Serialization;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace AirBomber
+namespace AirBomber.Exceptions
 {
     [Serializable]
     internal class StorageOverflowException: ApplicationException