[InvalidOperationException: 无法将类型为“System.String”的对象转换为类型“PromotionHelper+Channel_json”]
System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject) +833
System.Web.Script.Serialization.ObjectConverter.AssignToPropertyOrField(Object propertyValue, Object o, String memberName, JavaScriptSerializer serializer, Boolean throwOnError) +260
System.Web.Script.Serialization.ObjectConverter.ConvertDictionaryToObject(IDictionary`2 dictionary, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject) +1162
System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject) +91
System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit) +91
System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(String input) +57
Common.JsonHelper.JsonDivertToObj(String json, Int32 MaxJsonLength) in D:\WorkFile(GIT)\qbj.project\qbj.project\Common\JsonHelper.cs:17
PromotionHelper.Get(Int32 Channelid, String tgkws, String ip, Boolean isCookies) in d:\netdeploy\WEB.free\App_Code\PromotionHelper.cs:30
_Default.Page_Load(Object sender, EventArgs e) in d:\netdeploy\WEB.free\Default.aspx.cs:29
System.Web.UI.Control.OnLoad(EventArgs e) +106
System.Web.UI.Control.LoadRecursive() +68
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785
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