diff --git a/Sources/Persistance/Persistance.cs b/Sources/Persistance/Persistance.cs
index 7e8607a..37ec0ff 100644
--- a/Sources/Persistance/Persistance.cs
+++ b/Sources/Persistance/Persistance.cs
@@ -40,7 +40,7 @@ namespace StimPersistance
             if (File.Exists("games.xml"))
             {
                 DataContractSerializer serializer = new(typeof(ObservableCollection<Game>));
-                using (Stream stream = File.OpenRead("games.xml")) return serializer.ReadObject(stream) as ObservableCollection<Game>;
+                using (Stream stream = File.OpenRead("games.xml")) return serializer.ReadObject(stream) as ObservableCollection<Game> ?? new();
             }
             return new();
         }
@@ -50,7 +50,7 @@ namespace StimPersistance
             if (File.Exists("users.xml"))
             {
                 DataContractSerializer serializer = new(typeof(HashSet<User>));
-                using (Stream stream = File.OpenRead("users.xml")) return serializer.ReadObject(stream) as HashSet<User>;
+                using (Stream stream = File.OpenRead("users.xml")) return serializer.ReadObject(stream) as HashSet<User> ?? new();
             }
             return new();
         }        
diff --git a/Sources/Stim/Create.xaml b/Sources/Stim/Create.xaml
index a5cf034..a267e1b 100644
--- a/Sources/Stim/Create.xaml
+++ b/Sources/Stim/Create.xaml
@@ -34,9 +34,9 @@
                     <RowDefinition Height="auto"/>
                     <RowDefinition Height="auto"/>
                 </Grid.RowDefinitions>
-                <Entry Text="Adresse@adresse.com" Placeholder="Adresse Mail" PlaceholderColor="{StaticResource Primary}" IsPassword="False" x:Name="Email" HeightRequest="50" ClearButtonVisibility="WhileEditing"/>
+                <Entry Placeholder="Adresse Mail" PlaceholderColor="{StaticResource Primary}" IsPassword="False" x:Name="Email" HeightRequest="50" ClearButtonVisibility="WhileEditing"/>
                 <Entry Placeholder="Username"     PlaceholderColor="{StaticResource Primary}" IsPassword="False" x:Name="Username" HeightRequest="50" Grid.Row="1" ClearButtonVisibility="WhileEditing"/>
-                <Entry Text="Azerty123*" Placeholder="Mot de passe" PlaceholderColor="{StaticResource Primary}" IsPassword="True" x:Name="Pswd" HeightRequest="50" Grid.Row="2" ClearButtonVisibility="WhileEditing"/>
+                <Entry Placeholder="Mot de passe" PlaceholderColor="{StaticResource Primary}" IsPassword="True" x:Name="Pswd" HeightRequest="50" Grid.Row="2" ClearButtonVisibility="WhileEditing"/>
                 <Grid Grid.Row="3" Margin="10,0,0,10">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="*"/>
@@ -46,6 +46,8 @@
                     <Button Text="Créer un compte" Clicked="Creer_un_compte" HeightRequest="50" BackgroundColor="{StaticResource Gray500}" Grid.Column="1"/>
                 </Grid>
             </Grid>
+            <HorizontalStackLayout x:Name="Error" Grid.Row="2">
+            </HorizontalStackLayout>
         </Grid>
     </Grid>
 </ContentPage>
\ No newline at end of file
diff --git a/Sources/Stim/Create.xaml.cs b/Sources/Stim/Create.xaml.cs
index c7a969c..1e9e39e 100644
--- a/Sources/Stim/Create.xaml.cs
+++ b/Sources/Stim/Create.xaml.cs
@@ -1,3 +1,4 @@
+using Microsoft.Maui.Graphics;
 using System.Text.RegularExpressions;
 
 namespace Stim;
@@ -10,7 +11,8 @@ public partial class Create : ContentPage
 	}
     private async void Creer_un_compte(object sender, EventArgs e)
     {
-        if (!string.IsNullOrWhiteSpace(Username.Text) || !string.IsNullOrWhiteSpace(Pswd.Text) || !string.IsNullOrWhiteSpace(Email.Text))
+        Error.Clear();
+        if (!string.IsNullOrWhiteSpace(Username.Text) && !string.IsNullOrWhiteSpace(Pswd.Text) && !string.IsNullOrWhiteSpace(Email.Text))
         {
             if (((App)App.Current).Manager.SearchUser(Username.Text) == null)
             {
@@ -22,14 +24,15 @@ public partial class Create : ContentPage
                     Application.Current.MainPage = new AppShell();
                     await Shell.Current.GoToAsync("//MainPage");
                 }
-                else throw new NotImplementedException();
-            }
-            else throw new NotImplementedException();
+                else Error.Children.Add(new Label { Text = "Mot de passe incorrect", TextColor = Colors.Red, VerticalTextAlignment = TextAlignment.Start });
+            }
+            else Error.Children.Add(new Label { Text = "Ce nom d'utilisateur est déjà pris", TextColor = Colors.Red, VerticalTextAlignment = TextAlignment.Start });
         }
+        else Error.Children.Add(new Label { Text = "Champs vides", TextColor = Colors.Red, VerticalTextAlignment = TextAlignment.Start });
     }
-    private async void Se_connecter(object sender, EventArgs e)
+    private void Se_connecter(object sender, EventArgs e)
     {
         //Ca ça marche pas faut une autre commande, Marc svp aide moi
-        await Navigation.PushAsync(new LoginPage());
+        Application.Current.MainPage = new LoginPage();
     }
 }
\ No newline at end of file
diff --git a/Sources/Stim/LoginPage.xaml b/Sources/Stim/LoginPage.xaml
index 2b48f0d..7d6b4ab 100644
--- a/Sources/Stim/LoginPage.xaml
+++ b/Sources/Stim/LoginPage.xaml
@@ -44,6 +44,9 @@
                     <Button Text="Créer un compte" Clicked="Creer_un_compte" HeightRequest="50" BackgroundColor="{StaticResource Gray500}" Grid.Column="1"/>
                 </Grid>
             </Grid>
+            <HorizontalStackLayout x:Name="Error" Grid.Row="2">
+                
+            </HorizontalStackLayout>
         </Grid>
     </Grid>
 </ContentPage>
\ No newline at end of file
diff --git a/Sources/Stim/LoginPage.xaml.cs b/Sources/Stim/LoginPage.xaml.cs
index 419777a..c812304 100644
--- a/Sources/Stim/LoginPage.xaml.cs
+++ b/Sources/Stim/LoginPage.xaml.cs
@@ -1,8 +1,8 @@
 //using Microsoft.UI.Xaml.Navigation;
-using Model;
-
-namespace Stim;
-
+using Model;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace Stim;
 public partial class LoginPage : ContentPage
 {
 	public LoginPage()
@@ -12,29 +12,28 @@ public partial class LoginPage : ContentPage
 
     private async void Se_connecter(object sender, EventArgs e)
     {
-		if (!string.IsNullOrWhiteSpace(Username.Text) || !string.IsNullOrWhiteSpace(Pswd.Text))
+		if (!string.IsNullOrWhiteSpace(Username.Text) && !string.IsNullOrWhiteSpace(Pswd.Text))
 		{
-			User user = ((App)App.Current).Manager.SearchUser(Username.Text);
-			if (user != null)
-			{
-				if (user.Password == Pswd.Text)
-				{
-					((App)App.Current).Manager.CurrentUser = user;
+			User user = ((App)App.Current).Manager.SearchUser(Username.Text);
+            if (user != null)
+            {
+                if (user.Password == Pswd.Text)
+                {
+                    ((App)App.Current).Manager.CurrentUser = user;
                     Application.Current.MainPage = new AppShell();
                     await Shell.Current.GoToAsync("//MainPage");
                 }
 
-                else throw new NotImplementedException();
-			}
-			else
-			{
-				throw new NotImplementedException();
-			}
-		}
+                else Error.Children.Add(new Label { Text = "Mot de passe incorrect", TextColor = Colors.Red, VerticalTextAlignment = TextAlignment.Start });
+            }
+            else Error.Children.Add(new Label { Text = "Information incorrecte", TextColor = Colors.Red, VerticalTextAlignment = TextAlignment.Start });
+		}
+        else Error.Children.Add(new Label { Text = "Champs vides", TextColor = Colors.Red, VerticalTextAlignment = TextAlignment.Start });
+
     }
 
-    private async void Creer_un_compte(object sender, EventArgs e)
+    private void Creer_un_compte(object sender, EventArgs e)
     {
-        await Shell.Current.GoToAsync("//MainPage");
+        Application.Current.MainPage = new Create();
     }
 }
\ No newline at end of file