diff --git a/.gitignore b/.gitignore
index 585f8689..f0892edc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -290,3 +290,4 @@ __pycache__/
 /Data
 /docs/_build
 *.RestApi.xml
+/BotSharp.WebHost/App_Data/AgentStorage
diff --git a/BotSharp.Core/AgentStorage/AgentStorageInFile.cs b/BotSharp.Core/AgentStorage/AgentStorageInFile.cs
new file mode 100644
index 00000000..a930be30
--- /dev/null
+++ b/BotSharp.Core/AgentStorage/AgentStorageInFile.cs
@@ -0,0 +1,115 @@
+using BotSharp.Platform.Abstraction;
+using BotSharp.Platform.Models;
+using CSRedis;
+using Microsoft.Extensions.Configuration;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BotSharp.Core.AgentStorage
+{
+    public class AgentStorageInFile<TAgent> : IAgentStorage<TAgent> 
+        where TAgent : AgentBase
+    {
+        private static CSRedisClient csredis;
+        private static string prefix = String.Empty;
+
+        private static string storageDir;
+
+        public AgentStorageInFile()
+        {
+            IConfiguration config = (IConfiguration)AppDomain.CurrentDomain.GetData("Configuration");
+            var db = config.GetSection("Database:Default").Value;
+            storageDir = config.GetSection($"Database:ConnectionStrings:{db}").Value;
+            string contentDir = AppDomain.CurrentDomain.GetData("DataPath").ToString();
+            storageDir = storageDir.Replace("|DataDirectory|", contentDir + Path.DirectorySeparatorChar);
+
+            if (!Directory.Exists(storageDir))
+            {
+                Directory.CreateDirectory(storageDir);
+            }
+        }
+
+        public async Task<TAgent> FetchById(string agentId)
+        {
+            string dataPath = Path.Combine(storageDir, agentId + ".json");
+            if (File.Exists(dataPath))
+            {
+                string json = File.ReadAllText(dataPath);
+                return JsonConvert.DeserializeObject<TAgent>(json);
+            }
+            else
+            {
+                return default(TAgent);
+            }
+        }
+
+        public async Task<TAgent> FetchByName(string agentName)
+        {
+            var files = Directory.GetFiles(storageDir);
+            for (int i = 0; i < files.Length; i++)
+            {
+                var file = files[i];
+                string json = File.ReadAllText(file);
+                var agent = JsonConvert.DeserializeObject<TAgent>(json);
+                if (agent.Name.ToLower() == agentName.ToLower())
+                {
+                    return agent;
+                }
+            }
+
+            return default(TAgent);
+        }
+
+        public async Task<bool> Persist(TAgent agent)
+        {
+            if (String.IsNullOrEmpty(agent.Id))
+            {
+                agent.Id = Guid.NewGuid().ToString();
+            }
+
+            var json = JsonConvert.SerializeObject(agent, new JsonSerializerSettings
+            {
+                NullValueHandling = NullValueHandling.Ignore,
+                Formatting = Formatting.Indented,
+            });
+
+            string dataPath = Path.Combine(storageDir, agent.Id + ".json");
+
+            File.WriteAllText(dataPath, json);
+
+            return true;
+        }
+
+        public async Task<int> PurgeAllAgents()
+        {
+            var files = Directory.GetFiles(storageDir);
+            for (int i = 0; i < files.Length; i++)
+            {
+                File.Delete(files[i]);
+            }
+
+            return files.Length;
+        }
+
+        public async Task<List<TAgent>> Query()
+        {
+            var agents = new List<TAgent>();
+
+            var files = Directory.GetFiles(storageDir);
+            for (int i = 0; i < files.Length; i++)
+            {
+                var file = files[i];
+                string json = File.ReadAllText(file);
+                var agent = JsonConvert.DeserializeObject<TAgent>(json);
+                agents.Add(agent);
+            }
+
+            return agents;
+        }
+    }
+}
diff --git a/BotSharp.Core/AgentStorage/AgentStorageServiceRegister.cs b/BotSharp.Core/AgentStorage/AgentStorageServiceRegister.cs
index 535bb2d1..3c8f30c7 100644
--- a/BotSharp.Core/AgentStorage/AgentStorageServiceRegister.cs
+++ b/BotSharp.Core/AgentStorage/AgentStorageServiceRegister.cs
@@ -17,6 +17,7 @@ namespace BotSharp.Core.AgentStorage
 
             services.AddSingleton<AgentStorageInMemory<TAgent>>();
             services.AddSingleton<AgentStorageInRedis<TAgent>>();
+            services.AddSingleton<AgentStorageInFile<TAgent>>();
 
             services.AddSingleton(factory =>
             {
@@ -30,6 +31,10 @@ namespace BotSharp.Core.AgentStorage
                     {
                         return factory.GetService<AgentStorageInMemory<TAgent>>();
                     }
+                    else if (key.Equals("AgentStorageInFile"))
+                    {
+                        return factory.GetService<AgentStorageInFile<TAgent>>();
+                    }
                     else
                     {
                         throw new ArgumentException($"Not Support key : {key}");
diff --git a/BotSharp.Core/BotSharp.Core.csproj b/BotSharp.Core/BotSharp.Core.csproj
index 1332e91a..127c3644 100644
--- a/BotSharp.Core/BotSharp.Core.csproj
+++ b/BotSharp.Core/BotSharp.Core.csproj
@@ -21,13 +21,13 @@ If you feel that this project is helpful to you, please Star on the project, we
     <RepositoryType>MIT</RepositoryType>
     <RepositoryUrl>https://github.com/Oceania2018/BotSharp</RepositoryUrl>
     <PackageTags>NLU, Chatbot, Bot, AI Bot, Artificial Intelligence</PackageTags>
-    <Version>1.7.1</Version>
+    <Version>1.7.2</Version>
     <PackageReleaseNotes>Monthly Update.
 Integrated with Tencent Wechat.
 If you feel that this project is helpful to you, please Star on the project, we will be very grateful.</PackageReleaseNotes>
     <Copyright>Since 2018 Haiping Chen</Copyright>
     <PackageProjectUrl>https://github.com/Oceania2018/BotSharp</PackageProjectUrl>
-    <AssemblyVersion>1.7.1.0</AssemblyVersion>
+    <AssemblyVersion>1.7.2.0</AssemblyVersion>
     <PackageIconUrl>https://raw.githubusercontent.com/Oceania2018/BotSharp/master/BotSharp.WebHost/wwwroot/images/BotSharp.png</PackageIconUrl>
     <PackageLicenseUrl>https://github.com/Oceania2018/BotSharp/blob/master/LICENSE</PackageLicenseUrl>
   </PropertyGroup>
diff --git a/BotSharp.Core/Modules/ModulesStartup.cs b/BotSharp.Core/Modules/ModulesStartup.cs
index 3dbae39c..16ccc2e6 100644
--- a/BotSharp.Core/Modules/ModulesStartup.cs
+++ b/BotSharp.Core/Modules/ModulesStartup.cs
@@ -32,6 +32,11 @@ namespace BotSharp.Core.Modules
                 throw new ArgumentNullException(nameof(configuration));
             ModulesOptions options = configuration.Get<ModulesOptions>();
 
+            if (options.Modules.Count == 0)
+            {
+                Console.WriteLine($"Platform emulator not found.", Color.Red);
+            }
+
             this._modules = options.Modules
                 .Select(s =>
                 {
@@ -48,6 +53,7 @@ namespace BotSharp.Core.Modules
                     else
                     {
                         IModule module = (IModule)Activator.CreateInstance(type);
+                        Console.WriteLine($"Loaded module \"{s.Type}\"", Color.Green);
                         return module;
                     }
                 }
@@ -82,6 +88,7 @@ namespace BotSharp.Core.Modules
         {
             foreach (IModule module in this._modules)
             {
+                if (module == null) continue;
                 module.Configure(app, env);
             }
         }
diff --git a/BotSharp.Core/PlatformBuilderBase.cs b/BotSharp.Core/PlatformBuilderBase.cs
index 1d991f6a..334f8c2b 100644
--- a/BotSharp.Core/PlatformBuilderBase.cs
+++ b/BotSharp.Core/PlatformBuilderBase.cs
@@ -36,6 +36,8 @@ namespace BotSharp.Core
 
         public async Task<TAgent> LoadAgentFromFile<TImporter>(string dataDir) where TImporter : IAgentImporter<TAgent>, new()
         {
+            Console.WriteLine($"Loading agent from folder {dataDir}");
+
             var meta = LoadMeta(dataDir);
             var importer = new TImporter
             {
@@ -54,6 +56,8 @@ namespace BotSharp.Core
             // Load system buildin entities
             await importer.LoadBuildinEntities(agent);
 
+            Console.WriteLine($"Loaded agent: {agent.Name} {agent.Id}");
+
             return agent;
         }
 
diff --git a/BotSharp.Core/PlatformSettingsBase.cs b/BotSharp.Core/PlatformSettingsBase.cs
index a2d00268..5eeebd92 100644
--- a/BotSharp.Core/PlatformSettingsBase.cs
+++ b/BotSharp.Core/PlatformSettingsBase.cs
@@ -15,7 +15,7 @@ namespace BotSharp.Core
         public PlatformSettingsBase()
         {
             BotEngine = "BotSharpNLU";
-            AgentStorage = "AgentStorageInMemory";
+            AgentStorage = "AgentStorageInFile";
         }
 
         public string BotEngine { get; set; }
diff --git a/BotSharp.WebHost/BotSharp.WebHost.csproj b/BotSharp.WebHost/BotSharp.WebHost.csproj
index 2f90f4e5..a145174e 100644
--- a/BotSharp.WebHost/BotSharp.WebHost.csproj
+++ b/BotSharp.WebHost/BotSharp.WebHost.csproj
@@ -30,11 +30,13 @@
 
   <ItemGroup>
     <Compile Remove="App_Data\AgentArchive\**" />
+    <Compile Remove="App_Data\AgentStorage\**" />
     <Compile Remove="App_Data\Corpus\**" />
     <Compile Remove="App_Data\Projects\**" />
     <Compile Remove="PublishOutput\**" />
     <Compile Remove="publish\**" />
     <Content Remove="App_Data\AgentArchive\**" />
+    <Content Remove="App_Data\AgentStorage\**" />
     <Content Remove="App_Data\Corpus\**" />
     <Content Remove="App_Data\DbInitializer\**" />
     <Content Remove="App_Data\Projects\**" />
@@ -42,11 +44,13 @@
     <Content Remove="PublishOutput\**" />
     <Content Remove="publish\**" />
     <EmbeddedResource Remove="App_Data\AgentArchive\**" />
+    <EmbeddedResource Remove="App_Data\AgentStorage\**" />
     <EmbeddedResource Remove="App_Data\Corpus\**" />
     <EmbeddedResource Remove="App_Data\Projects\**" />
     <EmbeddedResource Remove="PublishOutput\**" />
     <EmbeddedResource Remove="publish\**" />
     <None Remove="App_Data\AgentArchive\**" />
+    <None Remove="App_Data\AgentStorage\**" />
     <None Remove="App_Data\Corpus\**" />
     <None Remove="App_Data\DbInitializer\**" />
     <None Remove="App_Data\Projects\**" />
diff --git a/BotSharp.WebHost/Settings/DialogflowAi.json b/BotSharp.WebHost/Settings/DialogflowAi.json
index 3e97eb18..062c51ce 100644
--- a/BotSharp.WebHost/Settings/DialogflowAi.json
+++ b/BotSharp.WebHost/Settings/DialogflowAi.json
@@ -1,7 +1,7 @@
 {
   // if you want to override platform setting, please set corresponding value, otherwise you don't need this section.
-    "dialogflowAi": {
-        "botEngine": "BotSharpNLU",
-        "agentStorage": "AgentStorageInRedis"
-    }
+  "dialogflowAi": {
+    "botEngine": "BotSharpNLU",
+    "agentStorage": "AgentStorageInFile"
+  }
 }
diff --git a/BotSharp.WebHost/Settings/app.json b/BotSharp.WebHost/Settings/app.json
index 49abd0bf..c79a99a9 100644
--- a/BotSharp.WebHost/Settings/app.json
+++ b/BotSharp.WebHost/Settings/app.json
@@ -4,19 +4,11 @@
 
   "platformModuleName": "DialogflowAi",
 
-  "machineLearning": {
-    "dataDir": "D:\\Projects\\BotSharp\\Data"
-  },
-
   "modules": [
-    {
+    /*{
       "Name": "DialogflowAi",
       "Type": "BotSharp.Platform.Dialogflow"
     },
-    {
-      "Name": "WeixinChannel",
-      "Type": "BotSharp.Channel.Weixin"
-    }/*,
     {
       "Name": "RasaAi",
       "Type": "BotSharp.Platform.Rasa",
diff --git a/BotSharp.WebHost/Settings/db.json b/BotSharp.WebHost/Settings/db.json
index 63b7fcae..4482fb34 100644
--- a/BotSharp.WebHost/Settings/db.json
+++ b/BotSharp.WebHost/Settings/db.json
@@ -1,11 +1,12 @@
 {
   "Database": {
-    "Default": "Redis",
+    "Default": "File",
     "ConnectionStrings": {
       "InMemory": "DataSource=:memory:",
       "Redis": "127.0.0.1:6379,defaultDatabase=BotSharp,poolsize=50,ssl=false,writeBuffer=10240,prefix=agent_",
       "Sqlite": "Data Source=|DataDirectory|BotSharp.db;",
-      "SqlServer": "Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=BotSharp;Integrated Security=True;Connect Timeout=15;Encrypt=False;TrustServerCertificate=True;ApplicationIntent=ReadWrite;MultiSubnetFailover=False"
+      "SqlServer": "Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=BotSharp;Integrated Security=True;Connect Timeout=15;Encrypt=False;TrustServerCertificate=True;ApplicationIntent=ReadWrite;MultiSubnetFailover=False",
+      "File": "|DataDirectory|AgentStorage"
     }
   }
 }
\ No newline at end of file
diff --git a/BotSharp.WebHost/Startup.cs b/BotSharp.WebHost/Startup.cs
index 9ef2eecf..57853e80 100644
--- a/BotSharp.WebHost/Startup.cs
+++ b/BotSharp.WebHost/Startup.cs
@@ -40,7 +40,7 @@ namespace BotSharp.WebHost
                 options.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
             });
 
-            PlatformModuleAssembyLoader.LoadAssemblies(Configuration, assembly => mvcBuilder.AddApplicationPart(assembly));
+            //PlatformModuleAssembyLoader.LoadAssemblies(Configuration, assembly => mvcBuilder.AddApplicationPart(assembly));
 
             this.modulesStartup.ConfigureServices(services);