Mini profiler nullreferenceexception

Question

When the stored procedure that I run is executed by the mini profiler, it throws a null link and causes my application to stop. In this case, SP returns nothing.

Here is the stack:

   at MvcMiniProfiler.MiniProfiler.AddSqlTiming(SqlTiming stats) in C:\Users\sam\Desktop\mvc-mini-profiler\MvcMiniProfiler\MiniProfiler.cs:line 274
   at MvcMiniProfiler.SqlTiming..ctor(DbCommand command, ExecuteType type, MiniProfiler profiler) in C:\Users\sam\Desktop\mvc-mini-profiler\MvcMiniProfiler\SqlTiming.cs:line 137
   at MvcMiniProfiler.SqlProfiler.ExecuteStartImpl(DbCommand command, ExecuteType type) in C:\Users\sam\Desktop\mvc-mini-profiler\MvcMiniProfiler\SqlProfiler.cs:line 39
   at MvcMiniProfiler.SqlProfilerExtensions.ExecuteStart(SqlProfiler sqlProfiler, DbCommand command, ExecuteType type) in C:\Users\sam\Desktop\mvc-mini-profiler\MvcMiniProfiler\SqlProfiler.cs:line 93
   at MvcMiniProfiler.MiniProfiler.MvcMiniProfiler.Data.IDbProfiler.ExecuteStart(DbCommand profiledDbCommand, ExecuteType executeType) in C:\Users\sam\Desktop\mvc-mini-profiler\MvcMiniProfiler\MiniProfiler.IDbProfiler.cs:line 14
   at MvcMiniProfiler.Data.ProfiledDbCommand.ExecuteDbDataReader(CommandBehavior behavior) in C:\Users\sam\Desktop\mvc-mini-profiler\MvcMiniProfiler\Data\ProfiledDbCommand.cs:line 158
   at System.Data.Common.DbCommand.ExecuteReader()
   at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult)
   at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries)
   at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query)
   at System.Data.Linq.DataContext.ExecuteMethodCall(Object instance, MethodInfo methodInfo, Object[] parameters)
   at NetINFO.NetINFODataContext.usp_SRM_GetPlansByType(Nullable`1 sRM_ID, Nullable`1 sRM_PlanTypeID) in C:\Code\netinfo\NetInfo.Web\App_Data\NetINFO.designer.cs:line 1949
   at NetINFO.NetCMG.SRM.GetSRMPlans(Int32 pPlanType) in C:\Code\netinfo\NetInfo.Web\pages\NetCMG\classes\SRM.cs:line 673
   at NetINFO.NetCMG.SRM.Validate() in C:\Code\netinfo\NetInfo.Web\pages\NetCMG\classes\SRM.cs:line 540
   at NetCMG.Controls.TicketErrorsCtl.ValidateTicket(SRM Ticket) in C:\Code\netinfo\NetInfo.Web\pages\NetCMG\Controls\TicketErrorsCtl.ascx.cs:line 29
   at NetCMG.Controls.TicketErrorsCtl.Page_Load(Object sender, EventArgs e) in C:\Code\netinfo\NetInfo.Web\pages\NetCMG\Controls\TicketErrorsCtl.ascx.cs:line 16
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Answer 1

Finally, I understood the solution to my question above. The error occurred in an inherited web application using the SQL data source for the grid. The sql database used the ProviderName property. As soon as I removed this property, everything started working.

Answer 2

There was the same problem: NRE from application launch. The exception isat MvcMiniProfiler.MiniProfiler.AddSqlTiming(SqlTiming stats)

Cause of problem: calling database in Application_AuthenticateRequest()

Solution: MiniProfiler.Start();moved to the end of the method Application_AuthenticateRequest().