Get "Sequence contains no matching element Stack" when running Compare Object tool (4225095)

Get "Sequence contains no matching element Stack" when running Compare Object tool

Following error occurs when running the Compare Object tool.

"System.InvalidOperationException Sequence contains no matching element Stack Trace: at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate) at Quest.Compare.Schema.Common.PlInterfaces.NodeCollection.get_Item(String name) at Quest.Compare.Schema.DB2.DBModel.CNS2PairTable.ScriptCreateColumnsComments(IScriptBuilder iSB, Boolean bAlterThroughRecreate, String sTableNameQu, ArrayList list_Columns) at Quest.Compare.Schema.DB2.DBModel.CNS2PairTable_UDB.ScriptCreateTable(IScriptBuilder iSB) at Quest.Compare.Schema.DB2.DBModel.CNS2PairTable_UDB.ScriptCreate_UDB(IScriptBuilder iSB) at Quest.Compare.Schema.DB2.DBModel.CNSPair.ScriptCreate(IScriptBuilder iSB) at Quest.Compare.Schema.General.UI.MigrationWizardDlg.FillReportItems() at Quest.Compare.Schema.General.UI.MigrationWizardDlg.OnProcessFinished(Type typeCmd, Boolean bSuccess, Boolean "