Why does executing a Stored Procedure With SubSonic 2.1 Inconsistently Populate sp.cmd? -

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i need execute stored procedure subsonic 2.1 deletes records following code:

var sp = dal.sps.uspdeleteimportapplication(); sp.execute();

sometimes following error:

"message":"object reference not set instance of object.","stacktrace":" @ subsonic.dataservice.executequery(querycommand cmd) in c:\svn\subsonicproject\trunk\subsonic\dataproviders\dataservice.cs:line 542 @ subsonic.storedprocedure.execute() in c:\svn\subsonicproject\trunk\subsonic\activerecord\storedprocedure.cs:line 277

when stepping through code debugger, i've noted dataprovider return stored procedure null _cmd object, if step through again can procedure execute.

my other stored procedures work consistently no errors. there i'm overlooking? under conditions data provider not connection string?


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