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Hi,

Please, sometimes the error appears: "Can not open a Resultset" and locking system. I'm using Delphi XE and Firebird 2.5. Below the error log:

I ask for help for a solution. Thanks.

[1D739244]{ZComponent150.bpl} Zabstractrodataset.TZAbstractRODataset.InternalInitFieldDefs + $C4
[5071FDE3]{dbrtl150.bpl} DB.TDataSet.OpenCursor (Line 11358, "DB.pas" + 2) + $4
[5071FFD1]{dbrtl150.bpl} DB.TDataSet.InitFieldDefs (Line 11429, "DB.pas" + 5) + $7
[5070E76F]{dbrtl150.bpl} DB.TDefCollection.UpdateDefs (Line 3394, "DB.pas" + 6) + $3
[5070F3A4]{dbrtl150.bpl} DB.TFieldDefs.Update (Line 3772, "DB.pas" + 1) + $A
[22E48403]{dcldb150.bpl} DSDesign.TFieldsEditor.DoAddFields (Line 823, "DSDesign.pas" + 5) + $C
[22E4838D]{dcldb150.bpl} DSDesign.TFieldsEditor.AddFields (Line 808, "DSDesign.pas" + 1) + $2
[22E4957E]{dcldb150.bpl} DSDesign.TFieldsEditor.AddAllFields (Line 1350, "DSDesign.pas" + 0) + $2
[5029E79F]{vcl150.bpl } Menus.TMenuItem.Click (Line 2527, "Menus.pas" + 19) + $8
[5029FC9B]{vcl150.bpl } Menus.TMenu.DispatchCommand (Line 3390, "Menus.pas" + 5) + $2
[502A0E7A]{vcl150.bpl } Menus.TPopupList.WndProc (Line 4496, "Menus.pas" + 4) + $E
[08BB08AD]{Castalia15.bpl} Castaliaeditor.GetSourceFromModule + $2FD
[502A0DC9]{vcl150.bpl } Menus.TPopupList.MainWndProc (Line 4471, "Menus.pas" + 2) + $5
[500AFA64]{rtl150.bpl } Classes.StdWndProc (Line 13491, "Classes.pas" + 8 ) + $0
[50358AF7]{vcl150.bpl } Forms.TApplication.ProcessMessage (Line 9760, "Forms.pas" + 23) + $1
[50358B3A]{vcl150.bpl } Forms.TApplication.HandleMessage (Line 9790, "Forms.pas" + 1) + $4
[50358E65]{vcl150.bpl } Forms.TApplication.Run (Line 9927, "Forms.pas" + 26) + $3

userbr,

an example? Something to work with?