diff --git a/src/Caliburn.Micro.Core/ResultCompletionEventArgs.cs b/src/Caliburn.Micro.Core/ResultCompletionEventArgs.cs
index e6e86b19..457ed3d7 100644
--- a/src/Caliburn.Micro.Core/ResultCompletionEventArgs.cs
+++ b/src/Caliburn.Micro.Core/ResultCompletionEventArgs.cs
@@ -18,5 +18,12 @@ public class ResultCompletionEventArgs : EventArgs
         /// </summary>
         /// <value><c>true</c> if cancelled; otherwise, <c>false</c>.</value>
         public bool WasCancelled;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ResultCompletionEventArgs"/> class.
+        /// </summary>
+        public ResultCompletionEventArgs()
+        {
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Core/Screen.cs b/src/Caliburn.Micro.Core/Screen.cs
index 80c68f65..5b6ba43f 100644
--- a/src/Caliburn.Micro.Core/Screen.cs
+++ b/src/Caliburn.Micro.Core/Screen.cs
@@ -103,20 +103,35 @@ async Task IActivate.ActivateAsync(CancellationToken cancellationToken)
 
             if (!IsInitialized)
             {
+                try
+                {
+                    Log.Info("Initializing {0}.", this);
 #pragma warning disable CS0618 // Type or member is obsolete
-                await OnInitializeAsync(cancellationToken);
+                    await OnInitializeAsync(cancellationToken);
 #pragma warning restore CS0618 // Type or member is obsolete
-                IsInitialized = initialized = true;
-                await OnInitializedAsync(cancellationToken);
+                    IsInitialized = initialized = true;
+                    await OnInitializedAsync(cancellationToken);
+                }
+                catch (Exception ex)
+                {
+                    Log.Error(ex);
+                    OnInitializedAsyncException(ex);
+                }
             }
-
-            Log.Info("Activating {0}.", this);
+            try
+            {
+                Log.Info("Activating {0}.", this);
 #pragma warning disable CS0618 // Type or member is obsolete
-            await OnActivateAsync(cancellationToken);
+                await OnActivateAsync(cancellationToken);
 #pragma warning restore CS0618 // Type or member is obsolete
-            IsActive = true;
-            await OnActivatedAsync(cancellationToken);
-
+                IsActive = true;
+                await OnActivatedAsync(cancellationToken);
+            }
+            catch (Exception ex)
+            {
+                Log.Error(ex);
+                OnActivatedAsyncException(ex);
+            }
             await (Activated?.InvokeAllAsync(this, new ActivationEventArgs
             {
                 WasInitialized = initialized
@@ -134,7 +149,16 @@ async Task IDeactivate.DeactivateAsync(bool close, CancellationToken cancellatio
                 });
 
                 Log.Info("Deactivating {0}.", this);
-                await OnDeactivateAsync(close, cancellationToken);
+                try
+                {
+                    await OnDeactivateAsync(close, cancellationToken);
+                }
+                catch (Exception ex)
+                {
+                    Log.Error(ex);
+                    OnDeactivateAsyncException(ex);
+                }
+
                 IsActive = false;
 
                 await (Deactivated?.InvokeAllAsync(this, new DeactivationEventArgs
@@ -206,6 +230,15 @@ protected virtual Task OnActivateAsync(CancellationToken cancellationToken)
         }
 
 
+        /// <summary>
+        /// Called when exception called in OnActivatedAsync.
+        /// </summary>
+        protected virtual void OnActivatedAsyncException(Exception thrownException)
+        {
+            Log.Info("Activated Async Exception");
+            Log.Error(thrownException);
+        }
+
         /// <summary>
         /// Called when view has been activated.
         /// </summary>
@@ -226,5 +259,23 @@ protected virtual Task OnDeactivateAsync(bool close, CancellationToken cancellat
             Log.Info("Task deactivate");
             return Task.FromResult(true);
         }
+
+        /// <summary>
+        /// Called when exception called in OnDectivateAsync.
+        /// </summary>
+        protected virtual void OnDeactivateAsyncException(Exception thrownException)
+        {
+            Log.Info("Deactivate Async Exception");
+            Log.Error(thrownException);
+        }
+
+        /// <summary>
+        /// Called when exception called in OnInitializedAsync.
+        /// </summary>
+        protected virtual void OnInitializedAsyncException(Exception thrownException)
+        {
+            Log.Info("Initialized Async Exception");
+            Log.Error(thrownException);
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/Android/CaliburnApplication.cs b/src/Caliburn.Micro.Platform/Platforms/Android/CaliburnApplication.cs
index 371de01a..61b78f65 100644
--- a/src/Caliburn.Micro.Platform/Platforms/Android/CaliburnApplication.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/Android/CaliburnApplication.cs
@@ -21,7 +21,7 @@ public class CaliburnApplication : Application
         public CaliburnApplication(IntPtr javaReference, JniHandleOwnership transfer)
             : base(javaReference, transfer)
         {
-            
+
         }
 
         /// <summary>
@@ -41,7 +41,7 @@ protected virtual void StartDesignTime()
 
         /// <summary>
         /// Called by the bootstrapper's constructor at runtime to start the framework.
-        /// </summary>B
+        /// </summary>
         protected virtual void StartRuntime()
         {
             AssemblySourceCache.Install();
@@ -131,5 +131,14 @@ protected virtual IEnumerable<object> GetAllInstances(Type service)
         protected virtual void BuildUp(object instance)
         {
         }
+
+        /// <summary>
+        /// Handles exceptions that occur during coroutine execution.
+        /// </summary>
+        /// <param name="sender">The sender of the event.</param>
+        /// <param name="e">The event arguments containing exception details.</param>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/Maui/Android/CaliburnApplication.cs b/src/Caliburn.Micro.Platform/Platforms/Maui/Android/CaliburnApplication.cs
index 074c54cc..130cbb9c 100644
--- a/src/Caliburn.Micro.Platform/Platforms/Maui/Android/CaliburnApplication.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/Maui/Android/CaliburnApplication.cs
@@ -1,10 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Android.App;
 using Android.Runtime;
-using Microsoft.Maui;
-using Microsoft.Maui.Hosting;
 
 namespace Caliburn.Micro.Maui
 {
@@ -23,7 +20,7 @@ public abstract class CaliburnApplication : Microsoft.Maui.MauiApplication
         public CaliburnApplication(IntPtr javaReference, JniHandleOwnership transfer)
             : base(javaReference, transfer)
         {
-            
+
         }
 
         /// <summary>
@@ -39,7 +36,7 @@ protected virtual void StartDesignTime()
 
         /// <summary>
         /// Called by the bootstrapper's constructor at runtime to start the framework.
-        /// </summary>B
+        /// </summary>
         protected virtual void StartRuntime()
         {
             AssemblySourceCache.Install();
@@ -79,6 +76,14 @@ protected void Initialize()
             {
                 StartRuntime();
             }
+
+            Coroutine.Completed += (s, e) =>
+            {
+                if (e.Error != null)
+                {
+                    CoroutineException(s, e);
+                }
+            };
         }
 
         /// <summary>
@@ -97,6 +102,13 @@ protected virtual IEnumerable<Assembly> SelectAssemblies()
             return new[] { GetType().GetTypeInfo().Assembly };
         }
 
- 
+        /// <summary>
+        /// Handles exceptions that occur during coroutine execution.
+        /// </summary>
+        /// <param name="sender">The sender of the event.</param>
+        /// <param name="e">The event arguments containing the exception details.</param>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/Maui/FormsApplication.cs b/src/Caliburn.Micro.Platform/Platforms/Maui/FormsApplication.cs
index 5a86e585..6d9a6f8f 100644
--- a/src/Caliburn.Micro.Platform/Platforms/Maui/FormsApplication.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/Maui/FormsApplication.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
-using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
 using Microsoft.Maui.Controls;
 
@@ -19,8 +18,10 @@ public abstract class MauiApplication : Application
         /// <summary>
         /// Start the framework.
         /// </summary>
-        protected void Initialize() {
-            if (isInitialized) {
+        protected void Initialize()
+        {
+            if (isInitialized)
+            {
                 return;
             }
 
@@ -30,10 +31,11 @@ protected void Initialize() {
 
             var baseExtractTypes = AssemblySourceCache.ExtractTypes;
 
-            AssemblySourceCache.ExtractTypes = assembly => {
+            AssemblySourceCache.ExtractTypes = assembly =>
+            {
                 var baseTypes = baseExtractTypes(assembly);
                 var elementTypes = assembly.ExportedTypes
-                    .Where(t => typeof (Element).GetTypeInfo().IsAssignableFrom(t.GetTypeInfo()));
+                    .Where(t => typeof(Element).GetTypeInfo().IsAssignableFrom(t.GetTypeInfo()));
 
                 return baseTypes.Union(elementTypes);
             };
@@ -44,6 +46,13 @@ protected void Initialize() {
             IoC.BuildUp = BuildUp;
 
             AssemblySource.Instance.Refresh();
+            Coroutine.Completed += (s, e) =>
+            {
+                if (e.Error != null)
+                {
+                    CoroutineException(s, e);
+                }
+            };
         }
 
         /// <summary>
@@ -174,5 +183,12 @@ protected virtual IEnumerable<object> GetAllInstances(Type service)
         protected virtual void BuildUp(object instance)
         {
         }
+
+        /// <summary>
+        /// Called by the bootstrapper's constructor at design time to start the framework.
+        /// </summary>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/Maui/Windows/CaliburnApplication.cs b/src/Caliburn.Micro.Platform/Platforms/Maui/Windows/CaliburnApplication.cs
index cad83b59..2c60869c 100644
--- a/src/Caliburn.Micro.Platform/Platforms/Maui/Windows/CaliburnApplication.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/Maui/Windows/CaliburnApplication.cs
@@ -141,5 +141,12 @@ protected virtual void OnUnhandledException(object sender, Microsoft.UI.Xaml.Unh
         {
         }
 
+        /// <summary>
+        /// Called by the bootstrapper's constructor at design time to start the framework.
+        /// </summary>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
+
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/Maui/iOS/CaliburnApplicationDelegate.cs b/src/Caliburn.Micro.Platform/Platforms/Maui/iOS/CaliburnApplicationDelegate.cs
index 66588d0b..51699f6a 100644
--- a/src/Caliburn.Micro.Platform/Platforms/Maui/iOS/CaliburnApplicationDelegate.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/Maui/iOS/CaliburnApplicationDelegate.cs
@@ -1,8 +1,5 @@
-using System;
 using System.Collections.Generic;
 using System.Reflection;
-using Foundation;
-using UIKit;
 using Microsoft.Maui;
 
 namespace Caliburn.Micro.Maui
@@ -86,6 +83,13 @@ protected void Initialize()
                 }
             else
                 StartRuntime();
+            Coroutine.Completed += (s, e) =>
+            {
+                if (e.Error != null)
+                {
+                    CoroutineException(s, e);
+                }
+            };
         }
 
         /// <summary>
@@ -101,7 +105,14 @@ protected virtual void Configure()
         /// <returns>A list of assemblies to inspect.</returns>
         protected virtual IEnumerable<Assembly> SelectAssemblies()
         {
-            return new[] {GetType().GetTypeInfo().Assembly};
+            return new[] { GetType().GetTypeInfo().Assembly };
+        }
+
+        /// <summary>
+        /// Called by the bootstrapper's constructor at design time to start the framework.
+        /// </summary>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
         }
 
     }
diff --git a/src/Caliburn.Micro.Platform/Platforms/iOS/CaliburnApplicationDelegate.cs b/src/Caliburn.Micro.Platform/Platforms/iOS/CaliburnApplicationDelegate.cs
index 64a5ad6c..74b3844c 100644
--- a/src/Caliburn.Micro.Platform/Platforms/iOS/CaliburnApplicationDelegate.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/iOS/CaliburnApplicationDelegate.cs
@@ -106,7 +106,7 @@ protected virtual void Configure()
         /// <returns>A list of assemblies to inspect.</returns>
         protected virtual IEnumerable<Assembly> SelectAssemblies()
         {
-            return new[] {GetType().GetTypeInfo().Assembly};
+            return new[] { GetType().GetTypeInfo().Assembly };
         }
 
         /// <summary>
@@ -127,7 +127,7 @@ protected virtual object GetInstance(Type service, string key)
         /// <returns>The located services.</returns>
         protected virtual IEnumerable<object> GetAllInstances(Type service)
         {
-            return new[] {Activator.CreateInstance(service)};
+            return new[] { Activator.CreateInstance(service) };
         }
 
         /// <summary>
@@ -137,5 +137,14 @@ protected virtual IEnumerable<object> GetAllInstances(Type service)
         protected virtual void BuildUp(object instance)
         {
         }
+
+        /// <summary>
+        /// Handles exceptions that occur during coroutine execution.
+        /// </summary>
+        /// <param name="sender">The sender of the event.</param>
+        /// <param name="e">The event arguments containing exception details.</param>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/net46-netcore/Bootstrapper.cs b/src/Caliburn.Micro.Platform/Platforms/net46-netcore/Bootstrapper.cs
index 93b31e1c..724a5c10 100644
--- a/src/Caliburn.Micro.Platform/Platforms/net46-netcore/Bootstrapper.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/net46-netcore/Bootstrapper.cs
@@ -44,7 +44,6 @@ public void Initialize()
 
             PlatformProvider.Current = new XamlPlatformProvider();
 
-
             var baseExtractTypes = AssemblySourceCache.ExtractTypes;
 
             AssemblySourceCache.ExtractTypes = assembly =>
@@ -75,6 +74,13 @@ public void Initialize()
             {
                 StartRuntime();
             }
+            Coroutine.Completed += (s, e) =>
+            {
+                if (e.Error != null)
+                {
+                    CoroutineException(s, e);
+                }
+            };
         }
 
         /// <summary>
@@ -136,7 +142,7 @@ protected virtual void Configure()
         /// <returns>A list of assemblies to inspect.</returns>
         protected virtual IEnumerable<Assembly> SelectAssemblies()
         {
-            return new[] {GetType().Assembly};
+            return new[] { GetType().Assembly };
         }
 
         /// <summary>
@@ -160,7 +166,7 @@ protected virtual object GetInstance(Type service, string key)
         /// <returns>The located services.</returns>
         protected virtual IEnumerable<object> GetAllInstances(Type service)
         {
-            return new[] {Activator.CreateInstance(service)};
+            return new[] { Activator.CreateInstance(service) };
         }
 
         /// <summary>
@@ -209,7 +215,6 @@ protected async Task DisplayRootViewForAsync(Type viewModelType, IDictionary<str
             await windowManager.ShowWindowAsync(IoC.GetInstance(viewModelType, null), null, settings);
         }
 
-
         /// <summary>
         /// Locates the view model, locates the associate view, binds them and shows it as the root view.
         /// </summary>
@@ -219,5 +224,14 @@ protected Task DisplayRootViewForAsync<TViewModel>(IDictionary<string, object> s
         {
             return DisplayRootViewForAsync(typeof(TViewModel), settings);
         }
+
+        /// <summary>
+        /// Override this to handle coroutine exceptions.
+        /// </summary>
+        /// <param name="sender">The sender.</param>
+        /// <param name="e">The event args.</param>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/net46/Bootstrapper.cs b/src/Caliburn.Micro.Platform/Platforms/net46/Bootstrapper.cs
index 93b31e1c..ea72ca4a 100644
--- a/src/Caliburn.Micro.Platform/Platforms/net46/Bootstrapper.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/net46/Bootstrapper.cs
@@ -3,8 +3,6 @@
 using System.Linq;
 using System.Reflection;
 using System.Threading.Tasks;
-using System.Windows;
-using System.Windows.Threading;
 
 namespace Caliburn.Micro
 {
@@ -75,6 +73,14 @@ public void Initialize()
             {
                 StartRuntime();
             }
+
+            Coroutine.Completed += (s, e) =>
+            {
+                if (e.Error != null)
+                {
+                    CoroutineException(s, e);
+                }
+            };
         }
 
         /// <summary>
@@ -136,7 +142,7 @@ protected virtual void Configure()
         /// <returns>A list of assemblies to inspect.</returns>
         protected virtual IEnumerable<Assembly> SelectAssemblies()
         {
-            return new[] {GetType().Assembly};
+            return new[] { GetType().Assembly };
         }
 
         /// <summary>
@@ -160,7 +166,7 @@ protected virtual object GetInstance(Type service, string key)
         /// <returns>The located services.</returns>
         protected virtual IEnumerable<object> GetAllInstances(Type service)
         {
-            return new[] {Activator.CreateInstance(service)};
+            return new[] { Activator.CreateInstance(service) };
         }
 
         /// <summary>
@@ -219,5 +225,12 @@ protected Task DisplayRootViewForAsync<TViewModel>(IDictionary<string, object> s
         {
             return DisplayRootViewForAsync(typeof(TViewModel), settings);
         }
+
+        /// <summary>
+        /// Called by the bootstrapper's constructor at design time to start the framework.
+        /// </summary>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/netcore-avalonia/BootstrapperBase.cs b/src/Caliburn.Micro.Platform/Platforms/netcore-avalonia/BootstrapperBase.cs
index 3f7ffae5..7cff0b9b 100644
--- a/src/Caliburn.Micro.Platform/Platforms/netcore-avalonia/BootstrapperBase.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/netcore-avalonia/BootstrapperBase.cs
@@ -6,6 +6,7 @@
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Threading;
 
 namespace Caliburn.Micro
 {
@@ -66,6 +67,13 @@ public void Initialize()
             {
                 StartRuntime();
             }
+            Coroutine.Completed += (s, e) =>
+            {
+                if (e.Error != null)
+                {
+                    CoroutineException(s, e);
+                }
+            };
         }
 
         /// <summary>
@@ -119,6 +127,16 @@ protected virtual void Configure()
         {
         }
 
+        /// <summary>
+        /// Override this to catch unhandled exceptions.
+        /// </summary>
+        /// <param name="sender">The sender.</param>
+        /// <param name="e">The event args.</param>
+        protected virtual void OnUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
+        {
+            Log.Error(e.Exception);
+        }
+
         /// <summary>
         /// Override to tell the framework where to find assemblies to inspect for views, etc.
         /// </summary>
@@ -202,5 +220,15 @@ protected async Task DisplayRootViewFor<TViewModel>(IDictionary<string, object>
         {
             await DisplayRootViewForAsync(typeof(TViewModel), settings);
         }
+
+        /// <summary>
+        /// Handles coroutine exceptions.
+        /// </summary>
+        /// <param name="sender">The sender.</param>
+        /// <param name="e">The event args.</param>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+            Log.Error(e.Error ?? new Exception("Coroutine Error"));
+        }
     }
 }
diff --git a/src/Caliburn.Micro.Platform/Platforms/uap/CaliburnApplication.cs b/src/Caliburn.Micro.Platform/Platforms/uap/CaliburnApplication.cs
index 34d0432b..cf2b43d6 100644
--- a/src/Caliburn.Micro.Platform/Platforms/uap/CaliburnApplication.cs
+++ b/src/Caliburn.Micro.Platform/Platforms/uap/CaliburnApplication.cs
@@ -97,6 +97,13 @@ protected void Initialize()
             {
                 StartRuntime();
             }
+            Coroutine.Completed += (s, e) =>
+            {
+                if (e.Error != null)
+                {
+                    CoroutineException(s, e);
+                }
+            };
         }
 
         /// <summary>
@@ -137,7 +144,7 @@ protected virtual void Configure()
         /// <returns>A list of assemblies to inspect.</returns>
         protected virtual IEnumerable<Assembly> SelectAssemblies()
         {
-            return new[] {GetType().GetTypeInfo().Assembly};
+            return new[] { GetType().GetTypeInfo().Assembly };
         }
 
         /// <summary>
@@ -158,7 +165,7 @@ protected virtual object GetInstance(Type service, string key)
         /// <returns>The located services.</returns>
         protected virtual IEnumerable<object> GetAllInstances(Type service)
         {
-            return new[] {System.Activator.CreateInstance(service)};
+            return new[] { System.Activator.CreateInstance(service) };
         }
 
         /// <summary>
@@ -301,5 +308,12 @@ protected Task DisplayRootViewForAsync<T>(CancellationToken cancellationToken)
         /// <typeparam name="T">The view model type.</typeparam>
         /// <returns>A task that represents the asynchronous operation.</returns>
         protected Task DisplayRootViewForAsync<T>() => DisplayRootViewForAsync<T>(CancellationToken.None);
+
+        /// <summary>
+        /// Called by the bootstrapper's constructor at design time to start the framework.
+        /// </summary>
+        protected virtual void CoroutineException(object sender, ResultCompletionEventArgs e)
+        {
+        }
     }
 }