diff --git a/dotnet/Directory.Packages.props b/dotnet/Directory.Packages.props
index 0707bebc4063..aca7a136ddf8 100644
--- a/dotnet/Directory.Packages.props
+++ b/dotnet/Directory.Packages.props
@@ -7,6 +7,7 @@
     <MicrosoftExtensionConfiguration>9.0.0</MicrosoftExtensionConfiguration>
     <MicrosoftExtensionDependencyInjection>9.0.0</MicrosoftExtensionDependencyInjection>
     <MicrosoftExtensionLogging>9.0.0</MicrosoftExtensionLogging>
+    <MicrosoftExtensionOptions>9.0.0</MicrosoftExtensionOptions>
     <MicrosoftOrleans>9.0.1</MicrosoftOrleans>
     <OpenTelemetryInstrumentation>1.9.0</OpenTelemetryInstrumentation>
     <MicrosoftDotNetInteractive>1.0.0-beta.24568.1</MicrosoftDotNetInteractive>
@@ -74,8 +75,10 @@
     <PackageVersion Include="Microsoft.Extensions.Diagnostics.Testing" Version="9.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="9.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="9.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.Logging" Version="$(MicrosoftExtensionLogging)" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="$(MicrosoftExtensionLogging)" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Debug" Version="$(MicrosoftExtensionLogging)" />
+    <PackageVersion Include="Microsoft.Extensions.Options.DataAnnotations" Version="$(MicrosoftExtensionOptions)" />
     <PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="9.0.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="Microsoft.Orleans.Clustering.Cosmos" Version="$(MicrosoftOrleans)" />
diff --git a/dotnet/src/Microsoft.AutoGen/Core/IHandle.cs b/dotnet/src/Microsoft.AutoGen/Core/IHandle.cs
index d79e5708455b..e71b4cf07ca0 100644
--- a/dotnet/src/Microsoft.AutoGen/Core/IHandle.cs
+++ b/dotnet/src/Microsoft.AutoGen/Core/IHandle.cs
@@ -1,7 +1,6 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // IHandle.cs
 
-using Google.Protobuf;
 using Microsoft.AutoGen.Contracts;
 
 namespace Microsoft.AutoGen.Core;
@@ -9,7 +8,7 @@ namespace Microsoft.AutoGen.Core;
 /// <summary>
 /// Defines a handler interface for processing items of type <typeparamref name="T"/>.
 /// </summary>
-/// <typeparam name="T">The type of item to be handled, which must implement <see cref="IMessage"/>.</typeparam>
+/// <typeparam name="T">The type of item to be handled.</typeparam>
 public interface IHandle<in T>
 {
     /// <summary>
diff --git a/dotnet/src/Microsoft.AutoGen/Core/Microsoft.AutoGen.Core.csproj b/dotnet/src/Microsoft.AutoGen/Core/Microsoft.AutoGen.Core.csproj
index 0dc3cba17475..7a42259dd6ca 100644
--- a/dotnet/src/Microsoft.AutoGen/Core/Microsoft.AutoGen.Core.csproj
+++ b/dotnet/src/Microsoft.AutoGen/Core/Microsoft.AutoGen.Core.csproj
@@ -8,13 +8,13 @@
 
   <Import Project="$(RepoRoot)/nuget/nuget-package.props" />
 
-
 	<ItemGroup>
 		<ProjectReference Include="..\Contracts\Microsoft.AutoGen.Contracts.csproj" />
-		<ProjectReference Include="..\Extensions\Aspire\Microsoft.AutoGen.Extensions.Aspire.csproj" />
 	</ItemGroup>
 
 	<ItemGroup>
+		<PackageReference Include="Microsoft.Extensions.Hosting" />
+		<PackageReference Include="Microsoft.Extensions.Logging" />
 	  <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
 	  <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
 	</ItemGroup>
diff --git a/dotnet/src/Microsoft.AutoGen/Extensions/SemanticKernel/Microsoft.AutoGen.Extensions.SemanticKernel.csproj b/dotnet/src/Microsoft.AutoGen/Extensions/SemanticKernel/Microsoft.AutoGen.Extensions.SemanticKernel.csproj
index dc57a068ce52..86703649802f 100644
--- a/dotnet/src/Microsoft.AutoGen/Extensions/SemanticKernel/Microsoft.AutoGen.Extensions.SemanticKernel.csproj
+++ b/dotnet/src/Microsoft.AutoGen/Extensions/SemanticKernel/Microsoft.AutoGen.Extensions.SemanticKernel.csproj
@@ -9,6 +9,7 @@
 
   <ItemGroup>
 	  <PackageReference Include="Azure.AI.OpenAI" />
+    <PackageReference Include="Microsoft.Extensions.Options.DataAnnotations" />
 	  <PackageReference Include="Microsoft.SemanticKernel" />
     <PackageReference Include="Microsoft.SemanticKernel.Connectors.Qdrant" />
     <PackageReference Include="Microsoft.SemanticKernel.Plugins.Memory" />