diff --git a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Conversation.cs b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Conversation.cs
index ff8dfa17..844afb65 100644
--- a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Conversation.cs
+++ b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.Conversation.cs
@@ -115,7 +115,7 @@ public partial class TencentCosService
         return foundMsgs;
     }
 
-    public bool SaveMessageFiles(string conversationId, string messageId, string source, List<InputFileModel> files)
+    public bool SaveMessageFiles(string conversationId, string messageId, string source, List<FileDataModel> files)
     {
         if (files.IsNullOrEmpty()) return false;
 
diff --git a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.KnowledgeBase.cs b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.KnowledgeBase.cs
new file mode 100644
index 00000000..9d521142
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.KnowledgeBase.cs
@@ -0,0 +1,36 @@
+using BotSharp.Abstraction.Knowledges.Models;
+
+namespace BotSharp.Plugin.TencentCos.Services;
+
+public partial class TencentCosService
+{
+    public bool SaveKnowledgeBaseFile(string collectionName, string vectorStoreProvider, string fileId, string fileName, Stream stream)
+    {
+        throw new NotImplementedException();
+    }
+
+    public bool DeleteKnowledgeFile(string collectionName, string vectorStoreProvider, string? fileId = null)
+    {
+        throw new NotImplementedException();
+    }
+
+    public bool SaveKnolwedgeBaseFileMeta(string collectionName, string vectorStoreProvider, string fileId, KnowledgeDocMetaData metaData)
+    {
+        throw new NotImplementedException();
+    }
+
+    public KnowledgeDocMetaData? GetKnowledgeBaseFileMeta(string collectionName, string vectorStoreProvider, string fileId)
+    {
+        throw new NotImplementedException();
+    }
+
+    public IEnumerable<KnowledgeFileModel> GetKnowledgeBaseFiles(string collectionName, string vectorStoreProvider)
+    {
+        throw new NotImplementedException();
+    }
+
+    public FileBinaryDataModel? GetKnowledgeBaseFileBinaryData(string collectionName, string vectorStoreProvider, string fileId)
+    {
+        throw new NotImplementedException();
+    }
+}
diff --git a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.User.cs b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.User.cs
index a2308539..d955342d 100644
--- a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.User.cs
+++ b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.User.cs
@@ -16,7 +16,7 @@ public partial class TencentCosService
         return found;
     }
 
-    public bool SaveUserAvatar(InputFileModel file)
+    public bool SaveUserAvatar(FileDataModel file)
     {
         if (file == null || string.IsNullOrEmpty(file.FileData)) return false;
 
diff --git a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.cs b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.cs
index c48812f1..fe733923 100644
--- a/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.cs
+++ b/src/Plugins/BotSharp.Plugin.TencentCos/Services/TencentCosService.cs
@@ -1,4 +1,5 @@
 using BotSharp.Abstraction.Files;
+using BotSharp.Abstraction.Knowledges.Models;
 using BotSharp.Abstraction.Users;
 using BotSharp.Plugin.TencentCos.Settings;
 using System.Net.Mime;