The full stack trace of the error is:

ClientMasterEntity ODEntity = clientMaster.NewEntity();

at System.Data.OracleClient.OracleConnection.CheckError(OciErrorHandle errorHandle, Int32 rc)
at System.Data.OracleClient.OracleCommand.Execute(OciStatementHandle statementHandle, CommandBehavior behavior, Boolean needRowid, OciRowidDescriptor& rowidDescriptor, ArrayList& resultParameterOrdinals)
at System.Data.OracleClient.OracleCommand.Execute(OciStatementHandle statementHandle, CommandBehavior behavior, ArrayList& resultParameterOrdinals)
at System.Data.OracleClient.OracleCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.OracleClient.OracleCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.FillSchemaInternal(DataSet dataset, DataTable datatable, SchemaType schemaType, IDbCommand command, String srcTable, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.FillSchema(DataSet dataSet, SchemaType schemaType, IDbCommand command, String srcTable, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.FillSchema(DataSet dataSet, SchemaType schemaType, String srcTable)
at OakLeaf.MM.Main.Data.mmDataAccessOracle.GetEmptyDataSetBySproc(DataSet ds, String tableName, String schema, String sprocName, DataTable sprocParamsTable)
at OakLeaf.MM.Main.Data.mmDataAccessOracle.GetEmptyDataSetBySproc(DataSet ds, String tableName, String schema, String sprocName)
at OakLeaf.MM.Main.Business.mmBusinessObject.GetEmptyDataTable(DataSet& ds, String tableName, mmDataAccessBase dao)
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.NewEntity(Object defaultValues, Boolean addToEntityList)
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.NewEntity(Object defaultValues)
at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.NewEntity()
at MMEval.AAppTest.InsertClientMaster() in C:\vidya\dev\Other Appr\MMEval\MM Business Object Library1\AAppTest.cs:line 40


Error Message:

MMEval.AAppTest.InsertClientMaster:
System.Data.OracleClient.OracleException : ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'CLIENT_MASTERSELECT'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored


Hope it will give you some clue.

Regards,
Vidya