Fix warning

B3WeChat.Web/B3WeChat.Web.csproj

@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>

B3WeChat/B3WeChat.csproj

@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>

B3WeChat/Tasks/ClearExpiredApproveMessagesTask.cs

@@ -6,7 +6,6 @@ using System.Linq;
 using System.Text;
 using TSingSoft.WebPluginFramework;
 using TSingSoft.WebPluginFramework.TimerTasks;
-using TSingSoft.WebPluginFramework;
 namespace BWP.B3WeChat.Tasks
 {
   public class ClearExpiredApproveMessagesTask

B3WeChat/Utils/XmlUtil.cs

@@ -29,7 +29,7 @@ namespace BWP.B3WeChat.Utils
           return xmldes.Deserialize(sr);
         }
       }
-      catch (Exception e)
+      catch (Exception)
       {
 
         return null;