Oracle error while migrating visual studio from 2008 to 2013

Question

im using oracle.dataaccess.dll , and my oracle version is 11.2.0
i migrated from .net 2.5 to .net 4.5 , but iam using dataset in my code
when im running it iam getting the belwo error
An exception of type 'System.ArgumentException' occurred in Oracle.DataAccess.dll but was not handled in user code
can you please help me asap  to solve it

Answer 1

Write an event handler that catches the error and outputs the error text. That will help diagnose what the problem is and where the problem is likely occurring.
For example:
            try
                         <DataSet code>
              catch (Exception ex)
                Console.WriteLine(ex.Message);
                Console.WriteLine(ex.InnerException);
                Console.WriteLine(ex.Data);