diff --git a/src/c#/GeneralUpdate.Api/Program.cs b/src/c#/GeneralUpdate.Api/Program.cs
index 35a851f2abe33130c2f82595c8aa751d9aea9e54..6e8fa59b5c50bb87a4d586d39b38c7c65875a94a 100644
--- a/src/c#/GeneralUpdate.Api/Program.cs
+++ b/src/c#/GeneralUpdate.Api/Program.cs
@@ -36,7 +36,7 @@ var app = builder.Build();
 app.MapGet("/versions/{clientType}/{clientVersion}/{clientAppKey}", (int clientType, string clientVersion, string clientAppKey, IUpdateService updateService) =>
 {
     var versions = new List<VersionDTO>();
-    var hash = "9bf414990a67e74f11752d03f49b15d8";//生成好的更新包文件的MD5码，因为返回给客户端的时候需要同这个来验证是否可用
+    var hash = "415eed05eb310f480d1e4d15516fa00e484ddb9f416908b217f17b782ded2030";//生成好的更新包文件的MD5码，因为返回给客户端的时候需要同这个来验证是否可用
     var pubTime = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds();
     string version = null;
     if (clientType == AppType.ClientApp)
@@ -48,10 +48,10 @@ app.MapGet("/versions/{clientType}/{clientVersion}/{clientAppKey}", (int clientT
     else if (clientType == AppType.UpgradeApp)
     {
         //upgrad
-        //version = "0.0.0.0";
-        version = "9.9.9.9"; //这里设置为9是让程序认为需要更新
+        version = "0.0.0.0";
+        //version = "9.9.9.9"; //这里设置为9是让程序认为需要更新
     }
-    var url = $"http://192.168.50.203/update.zip";//更新包的下载地址
+    var url = $"http://127.0.0.1/WpfClient_1_24.1.5.1218.zip";//更新包的下载地址
     var name = "update";
     versions.Add(new VersionDTO(hash, pubTime, version, url, name));
     return updateService.Update(clientType, clientVersion, version, clientAppKey, GetAppSecretKey(), false, versions);
diff --git a/src/c#/GeneralUpdate.Client/MySample.cs b/src/c#/GeneralUpdate.Client/MySample.cs
index 64fc8ab778ae73951f1fe990d11f216dc8a062a9..0488921f7368c0a4bea873650dbb0271d2659027 100644
--- a/src/c#/GeneralUpdate.Client/MySample.cs
+++ b/src/c#/GeneralUpdate.Client/MySample.cs
@@ -19,7 +19,7 @@ namespace GeneralUpdate.Client
     {
         #region 鎺ㄩ�佸姛鑳�
 
-        private const string baseUrl = @"http://localhost:5051";
+        private const string baseUrl = @"http://127.0.0.1:5001";
         private const string hubName = "versionhub";
 
         internal MySample()
@@ -119,7 +119,7 @@ namespace GeneralUpdate.Client
             //瀹㈡埛绔綋鍓嶇増鏈彿
             config.ClientVersion = "1.1.1.1";
             //瀹㈡埛绔被鍨嬶細1.涓荤▼搴忓鎴风 2.鏇存柊缁勪欢
-            config.AppType = AppType.ClientApp;
+            config.AppType = AppType.UpgradeApp;
             //鎸囧畾搴旂敤瀵嗛挜锛岀敤浜庡尯鍒嗗鎴风搴旂敤
             config.AppSecretKey = "B8A7FADD-386C-46B0-B283-C9F963420C7C";
             //鏇存柊缁勪欢鏇存柊鍖呬笅杞藉湴鍧�
diff --git a/src/c#/GeneralUpdate.Client/Program.cs b/src/c#/GeneralUpdate.Client/Program.cs
index d2b508002b83f039405c8ee7431fc128eea881a3..99480e10585b091829fbb35cf7bf2fdddfc2dd87 100644
--- a/src/c#/GeneralUpdate.Client/Program.cs
+++ b/src/c#/GeneralUpdate.Client/Program.cs
@@ -1,4 +1,6 @@
-锘縩amespace GeneralUpdate.Client
+锘縰sing GeneralUpdate.Core.HashAlgorithms;
+
+namespace GeneralUpdate.Client
 {
     internal class Program
     {
@@ -6,6 +8,15 @@
         {
             Task.Run(async() => 
             {
+                //415eed05eb310f480d1e4d15516fa00e484ddb9f416908b217f17b782ded2030
+                //var zip1 = @"D:\github_project\WpfClient\WebApi\UpdateFiles\WpfClient_1_24.1.5.1218.zip";
+                //94bd3d806d39cd1b8813298ec0637c7f377658e766845a06cc50917306cb4ad9
+                //var zip2 = @"D:\github_project\WpfClient\WebApi\UpdateFiles\WpfClient_1_24.1.5.1224.zip";
+
+                //var hashAlgorithm = new Sha256HashAlgorithm();
+                //var hashSha256 = hashAlgorithm.ComputeHash(zip1);
+                //var hashSha2561 = hashAlgorithm.ComputeHash(zip2);
+
                 MySample sample = new MySample();
                 //await sample.TestDifferentialClean();
                 //await sample.TestDifferentialDirty();
diff --git a/src/c#/GeneralUpdate.ClientCore/GeneralUpdate.ClientCore.csproj b/src/c#/GeneralUpdate.ClientCore/GeneralUpdate.ClientCore.csproj
index 2dc1fd226f3d70d28cecbfc09fd7ddedbe854a38..523523f88d0c808a2bc04c2718cf1fc0a041850c 100644
--- a/src/c#/GeneralUpdate.ClientCore/GeneralUpdate.ClientCore.csproj
+++ b/src/c#/GeneralUpdate.ClientCore/GeneralUpdate.ClientCore.csproj
@@ -127,6 +127,7 @@
     <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomArgs\UnZipExceptionArgs.cs" Link="Exceptions\CustomArgs\UnZipExceptionArgs.cs" />
     <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomArgs\UpdateExceptionArgs.cs" Link="Exceptions\CustomArgs\UpdateExceptionArgs.cs" />
     <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomException\GeneralUpdateException.cs" Link="Exceptions\CustomException\GeneralUpdateException.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\ThrowExceptionUtility.cs" Link="Exceptions\ThrowExceptionUtility.cs" />
     <Compile Include="..\GeneralUpdate.Core\HashAlgorithms\HashAlgorithmBase.cs" Link="HashAlgorithms\HashAlgorithmBase.cs" />
     <Compile Include="..\GeneralUpdate.Core\HashAlgorithms\Md5HashAlgorithm.cs" Link="HashAlgorithms\Md5HashAlgorithm.cs" />
     <Compile Include="..\GeneralUpdate.Core\HashAlgorithms\Sha1HashAlgorithm.cs" Link="HashAlgorithms\Sha1HashAlgorithm.cs" />
diff --git a/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs b/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs
index 5a06c2b3a66dc7c96b4c94def7b87fb0d3206fd2..2062880ed895d41ad842ca40208ca32cbf40092b 100644
--- a/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs
+++ b/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs
@@ -166,35 +166,17 @@ namespace GeneralUpdate.Core.Bootstrap
 
         #region Callback event.
 
-        public TBootstrap AddListenerMultiAllDownloadCompleted(Action<object, MultiAllDownloadCompletedEventArgs> callbackAction)
-        {
-            return AddListener(callbackAction);
-        }
+        public TBootstrap AddListenerMultiAllDownloadCompleted(Action<object, MultiAllDownloadCompletedEventArgs> callbackAction)=> AddListener(callbackAction);
 
-        public TBootstrap AddListenerMultiDownloadProgress(Action<object, MultiDownloadProgressChangedEventArgs> callbackAction)
-        {
-            return AddListener(callbackAction);
-        }
+        public TBootstrap AddListenerMultiDownloadProgress(Action<object, MultiDownloadProgressChangedEventArgs> callbackAction)=> AddListener(callbackAction);
 
-        public TBootstrap AddListenerMultiDownloadCompleted(Action<object, MultiDownloadCompletedEventArgs> callbackAction)
-        {
-            return AddListener(callbackAction);
-        }
+        public TBootstrap AddListenerMultiDownloadCompleted(Action<object, MultiDownloadCompletedEventArgs> callbackAction)=> AddListener(callbackAction);
 
-        public TBootstrap AddListenerMultiDownloadError(Action<object, MultiDownloadErrorEventArgs> callbackAction)
-        {
-            return AddListener(callbackAction);
-        }
+        public TBootstrap AddListenerMultiDownloadError(Action<object, MultiDownloadErrorEventArgs> callbackAction)=> AddListener(callbackAction);
 
-        public TBootstrap AddListenerMultiDownloadStatistics(Action<object, MultiDownloadStatisticsEventArgs> callbackAction)
-        {
-            return AddListener(callbackAction);
-        }
+        public TBootstrap AddListenerMultiDownloadStatistics(Action<object, MultiDownloadStatisticsEventArgs> callbackAction)=> AddListener(callbackAction);
 
-        public TBootstrap AddListenerException(Action<object, ExceptionEventArgs> callbackAction)
-        {
-            return AddListener(callbackAction);
-        }
+        public TBootstrap AddListenerException(Action<object, ExceptionEventArgs> callbackAction)=> AddListener(callbackAction);
 
         protected TBootstrap AddListener<TArgs>(Action<object, TArgs> callbackAction) where TArgs : EventArgs
         {
diff --git a/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs b/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs
index 95c7cdbbaf7807061b3c31e7bf60a5dcb27071d5..088cd354e6aed7549a78557b7efdb9ce9b07d21b 100644
--- a/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs
+++ b/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs
@@ -1,5 +1,6 @@
 锘縰sing GeneralUpdate.Core.Exceptions.CustomArgs;
 using System;
+using System.IO;
 
 namespace GeneralUpdate.Core.Exceptions
 {
@@ -10,11 +11,9 @@ namespace GeneralUpdate.Core.Exceptions
 
         #region Common
 
-        public static void ThrowIfNull(object obj)
-        {
-            if (obj == null)
-                Throw<ArgumentException>("Parameter cannot be null");
-        }
+        public static void ThrowFileNotFound(string file) => Throw<FileNotFoundException>($"File cannot be accessed {file}!");
+
+        public static void ThrowIfNull()=> Throw<ArgumentException>("Parameter cannot be null");
 
         /// <summary>
         /// Checks if an object is empty and throws an exception if it is
diff --git a/src/c#/GeneralUpdate.Core/HashAlgorithms/HashAlgorithmBase.cs b/src/c#/GeneralUpdate.Core/HashAlgorithms/HashAlgorithmBase.cs
index bd75ad69fc5ea58d4f9436524caa963249080f64..09ed6b71e200a730cf74d6ac61ad62bf69496379 100644
--- a/src/c#/GeneralUpdate.Core/HashAlgorithms/HashAlgorithmBase.cs
+++ b/src/c#/GeneralUpdate.Core/HashAlgorithms/HashAlgorithmBase.cs
@@ -1,4 +1,5 @@
-锘縰sing System.IO;
+锘縰sing GeneralUpdate.Core.Exceptions;
+using System.IO;
 using System.Security.Cryptography;
 using System.Text;
 
@@ -8,6 +9,9 @@ namespace GeneralUpdate.Core.HashAlgorithms
     {
         public string ComputeHash(string fileName)
         {
+            if (!File.Exists(fileName))
+                ThrowExceptionUtility.ThrowFileNotFound(fileName);
+
             using (var hashAlgorithm = GetHashAlgorithm())
             {
                 using (var file = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read))
diff --git a/src/c#/GeneralUpdate.Differential/Exceptions/.gitkeep b/src/c#/GeneralUpdate.Differential/Exceptions/.gitkeep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/src/c#/GeneralUpdate.Differential/Exceptions/CustomArgs/.gitkeep b/src/c#/GeneralUpdate.Differential/Exceptions/CustomArgs/.gitkeep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/src/c#/GeneralUpdate.Differential/Exceptions/CustomException/.gitkeep b/src/c#/GeneralUpdate.Differential/Exceptions/CustomException/.gitkeep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/src/c#/GeneralUpdate.Differential/GeneralUpdate.Differential.csproj b/src/c#/GeneralUpdate.Differential/GeneralUpdate.Differential.csproj
index f9a76f981cd9268e823bba6601f42910fbadc79b..b39690182ab1d593e1c8b63cad920c0cfeaeacb5 100644
--- a/src/c#/GeneralUpdate.Differential/GeneralUpdate.Differential.csproj
+++ b/src/c#/GeneralUpdate.Differential/GeneralUpdate.Differential.csproj
@@ -16,6 +16,9 @@
   <ItemGroup>
     <None Remove="CustomAwaiter\.gitkeep" />
     <None Remove="Domain\PO\.gitkeep" />
+    <None Remove="Exceptions\.gitkeep" />
+    <None Remove="Exceptions\CustomArgs\.gitkeep" />
+    <None Remove="Exceptions\CustomException\.gitkeep" />
     <None Remove="GeneralUpdate.ico" />
     <None Remove="WillMessage\.gitkeep" />
   </ItemGroup>
@@ -25,6 +28,13 @@
     <Compile Include="..\GeneralUpdate.Core\CustomAwaiter\IAwaiter.cs" Link="CustomAwaiter\IAwaiter.cs" />
     <Compile Include="..\GeneralUpdate.Core\CustomAwaiter\ICriticalAwaiter.cs" Link="CustomAwaiter\ICriticalAwaiter.cs" />
     <Compile Include="..\GeneralUpdate.Core\Domain\PO\WillMessagePO.cs" Link="Domain\PO\WillMessagePO.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomArgs\ExceptionArgs.cs" Link="Exceptions\CustomArgs\ExceptionArgs.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomArgs\HttpExceptionArgs.cs" Link="Exceptions\CustomArgs\HttpExceptionArgs.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomArgs\PatchDirtyExceptionArgs.cs" Link="Exceptions\CustomArgs\PatchDirtyExceptionArgs.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomArgs\UnZipExceptionArgs.cs" Link="Exceptions\CustomArgs\UnZipExceptionArgs.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomArgs\UpdateExceptionArgs.cs" Link="Exceptions\CustomArgs\UpdateExceptionArgs.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\CustomException\GeneralUpdateException.cs" Link="Exceptions\CustomException\GeneralUpdateException.cs" />
+    <Compile Include="..\GeneralUpdate.Core\Exceptions\ThrowExceptionUtility.cs" Link="Exceptions\ThrowExceptionUtility.cs" />
     <Compile Include="..\GeneralUpdate.Core\HashAlgorithms\HashAlgorithmBase.cs" Link="HashAlgorithms\HashAlgorithmBase.cs" />
     <Compile Include="..\GeneralUpdate.Core\HashAlgorithms\Md5HashAlgorithm.cs" Link="HashAlgorithms\Md5HashAlgorithm.cs" />
     <Compile Include="..\GeneralUpdate.Core\HashAlgorithms\Sha1HashAlgorithm.cs" Link="HashAlgorithms\Sha1HashAlgorithm.cs" />