oracle odbc parameterize query with resultset

Dear all,
   I had a ERROR System.Data.Odbc.OdbcException: ERROR [HY105] [Microsoft][ODBC driver for Oracle]Invalid parameter type . Can anyone tell me what is the cause of such error ?
problem encountered at this line
-             myAdapter.Fill(ds)
here is wat i do.. .

CREATE OR REPLACE PACKAGE Pkg_MYweb
AS
TYPE tblString IS TABLE OF VARCHAR(50)INDEX BY BINARY_INTEGER;
TYPE tblNumber IS TABLE OF NUMBER(4) INDEX BY BINARY_INTEGER;
PROCEDURE GET_RPT
(
       i_ADDRESSKEY IN NUMBER,
        o_FIELD01 OUT tblString,
        o_FIELD02 OUT tblString,
        o_FIELD03 OUT tblNumber,
        o_FIELD04 OUT tblNumber
        o_FIELD05 OUT tblString,
        o_FIELD06 OUT tbString,
        o_FIELD07 OUT tblNumber,
        o_FIELD08 OUT tblNumber,
        o_FIELD09 OUT tblString,
        o_FIELD10 OUT tblNumber,
        o_FIELD11 OUT tblNumber,
        o_FIELD12 OUT tblString,
        o_FIELD13 OUT tblNumber,
        o_FIELD14 OUT tblNumber,
        o_FIELD15 OUT tblString
 );
 END Pkg_MYweb;

this is my code to access it

            myCommand = new OdbcCommand()
            myAdapter = new OdbcDataAdapter()
            myAdapter.SelectCommand = myCommand

            myCommand.CommandText = SqlString
            myCommand.CommandType = CommandType.StoredProcedure
            myCommand.Connection = myConnection

            prm = myCommand.Parameters.Add(new OdbcParameter("ADDRESSKEY", OdbcType.Int))
            prm.Direction = ParameterDirection.Input
            prm.Value = CInt(SiteCode)

            myCommand.Parameters.Add(new OdbcParameter("FIELD01", OdbcType.VarChar, 50, ParameterDirection.Output))
            myCommand.Parameters.Add(new OdbcParameter("FIELD02", OdbcType.VarChar, 50, ParameterDirection.Output))

            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD03", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output

            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD04", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output

            myCommand.Parameters.Add(new OdbcParameter("FIELD05", OdbcType.VarChar, 50, parameterDirection.Output))
            myCommand.Parameters.Add(new OdbcParameter("FIELD06", OdbcType.VarChar, 50, ParameterDirection.Output))

            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD07", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output
            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD08", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output
            myCommand.Parameters.Add(new OdbcParameter("FIELD09", OdbcType.VarChar, 50, ParameterDirection.Output))
            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD10", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output
            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD11", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output
            myCommand.Parameters.Add(new OdbcParameter("FIELD12", OdbcType.VarChar, 50, ParameterDirection.Output))
            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD13", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output
            prm = myCommand.Parameters.Add(new OdbcParameter("FIELD14", OdbcType.Numeric))
            prm.Direction = ParameterDirection.Output
            myCommand.Parameters.Add(new OdbcParameter("FIELD15", OdbcType.VarChar, 50, ParameterDirection.Output))

            myAdapter.Fill(ds)
            DbGrid.DataSource = ds
            DbGrid.DataBind()


thank you very much