Problem running app when released

Question

Hi,
I have created a windows application that calls an oracle procedure returning 2 ref cursors
The application works perfectly fine on the manchine I have developed it on but when I release to my other machine it does not work and I get the following error.
Object reference not set an instance of an object
I have installed the same version of ORACLE DATA PROVIDER FOR .NET 11.1.0.6.20 as on my development machine. I have also done some test to check the app is connecting to the database which it is. The lines which are causing the problem are in bold.
' Connect
Dim con As OracleConnection = Connect(oradb)
' Set the command
Dim cmd As New OracleCommand("QUEUE_CALLS_PKG.QUEUECALLSPLASMADISPLAY", con)
cmd.CommandType = CommandType.StoredProcedure
'Declare refcursor and call public shared function get ref cursor
Dim refCursors As OracleRefCursor() = GetRefCursors(cmd)
Try
Dim ds As New DataSet()
ds.Tables.Add(New DataTable("refcur0"))
ds.Tables.Add(New DataTable("refcur1"))
Dim adpt As New OracleDataAdapter(cmd)
adpt.Fill(ds.Tables("refcur0"), refCursors(0))
adpt.Fill(ds.Tables("refcur1"), refCursors(1))
'bind dataset to datagridview
DataGridView1.DataSource = ds.Tables("refcur0")
DataGridView2.DataSource = ds.Tables("refcur1")
ColourGrids()
'PlaySoundFile()
Catch x As Exception
MessageBox.Show("Queue On Load error: " + x.Message.ToString())
Finally
' Dispose OracleCommand object
cmd.Dispose()
' Close and Dispose OracleConnection object
con.Close()
con.Dispose()
End Try
Just in case your wondering why this is done like this is because I have a procedure returning 2 ref cursors.

Answer 1

Resolved Thanks