[KeyNotFoundException: 给定关键字不在字典中。]
System.ThrowHelper.ThrowKeyNotFoundException() +36
System.Collections.Generic.Dictionary`2.get_Item(TKey key) +52
MySql.Data.MySqlClient.CharSetMap.GetChararcterSet(DBVersion version, String CharSetName) in E:\trd\Carpa.NET\src\Carpa.Tools\MySql.Data\Source\CharSetMap.cs:53
MySql.Data.MySqlClient.NativeDriver.GetFieldMetaData41() in E:\trd\Carpa.NET\src\Carpa.Tools\MySql.Data\Source\NativeDriver.cs:729
MySql.Data.MySqlClient.NativeDriver.GetFieldMetaData() in E:\trd\Carpa.NET\src\Carpa.Tools\MySql.Data\Source\NativeDriver.cs:668
MySql.Data.MySqlClient.NativeDriver.ReadColumnMetadata(Int32 count) in E:\trd\Carpa.NET\src\Carpa.Tools\MySql.Data\Source\NativeDriver.cs:655
MySql.Data.MySqlClient.MySqlDataReader.NextResult() in E:\trd\Carpa.NET\src\Carpa.Tools\MySql.Data\Source\datareader.cs:856
MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior) in E:\trd\Carpa.NET\src\Carpa.Tools\MySql.Data\Source\command.cs:433
MySql.Data.MySqlClient.MySqlCommand.ExecuteDbDataReader(CommandBehavior behavior) in E:\trd\Carpa.NET\src\Carpa.Tools\MySql.Data\Source\command.cs:876
Carpa.Web.Script.DbHelper.ExecuteReader(String sql) +186
Carpa.Web.Script.DbHelper.Select(String sql) +72
Carpa.Web.Script.DbHelper.SelectFirstRow(String sql) +67
Planet.Xue.DAL.CourseDAL.GetCourseById(UInt64 id) in F:\trd\product\Planet\src\common\Planet.Xue\DAL\CourseDAL.cs:246
Planet.Xue.BLL.CourseBLL.GetCourseById(UInt64 id) in F:\trd\product\Planet\src\common\Planet.Xue\BLL\CourseBLL.cs:62
Xue.Controllers.CourseController.InitCourse(UInt64 id) in F:\trd\product\Planet\src\home\Xue\Controllers\CourseController.cs:175
Xue.Controllers.CourseController.Buy(UInt64 id) in F:\trd\product\Planet\src\home\Xue\Controllers\CourseController.cs:52
lambda_method(Closure , ControllerBase , Object[] ) +142
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +253
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
System.Web.Mvc.Async.<>c__DisplayClass42.<BeginInvokeSynchronousActionMethod>b__41() +34
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +57
System.Web.Mvc.Async.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33() +77
System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +372
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +57
System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +32
System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +187
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +50
System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +24
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +64
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +50
System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +38
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +50
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +602
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128
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