I Can't add TWebXLSX Component

I need excel export/import feature for my website because of it i want to use that component but when i dragged it to form design its give me that error. Can anyone help me?

Delphi: Embarcadero® Delphi 11.0 Version 28.0.42600.6491
TMS Web Core: v2.0.4.0

Error;

"
[500AE2C8]{rtl280.bpl } System.SysUtils.TEncoding.GetString (Line 33933, "System.SysUtils.pas" + 12) + $12
[2D6B04CB]{TMSWEBCorePkgDEDXE14.bpl} TMS.htmldraw.THtDocument.LoadfromStream (Line 16017, "TMS.htmldraw.pas" + 15) + $1B
[2D8045DA]{TMSWEBCorePkgDEDXE14.bpl} TMS.Web.IDE.ManageJSLibs.Classes.TTMSWebIDELibs.CreateParser (Line 595, "TMS.Web.IDE.ManageJSLibs.Classes.pas" + 7) + $9
[2D80456E]{TMSWEBCorePkgDEDXE14.bpl} TMS.Web.IDE.ManageJSLibs.Classes.TTMSWebIDELibs.CreateParser (Line 579, "TMS.Web.IDE.ManageJSLibs.Classes.pas" + 3) + $5
[2D80564C]{TMSWEBCorePkgDEDXE14.bpl} TMS.Web.IDE.ManageJSLibs.Classes.TTMSWebIDELibs.LoadFromHTMLFile (Line 903, "TMS.Web.IDE.ManageJSLibs.Classes.pas" + 5) + $13
[2D82528D]{TMSWEBCorePkgDEDXE14.bpl} TMS.Web.IDE.NotifyDesign.TTMSWebIDENotifierDesign.ModifyProject (Line 733, "TMS.Web.IDE.NotifyDesign.pas" + 4) + $6
[2D824B08]{TMSWEBCorePkgDEDXE14.bpl} TMS.Web.IDE.NotifyDesign.TTMSWebIDENotifierDesign.FindProjects (Line 564, "TMS.Web.IDE.NotifyDesign.pas" + 9) + $9
[2D8247AC]{TMSWEBCorePkgDEDXE14.bpl} TMS.Web.IDE.NotifyDesign.TTMSWebIDENotifierDesign.CheckJSLibReference (Line 423, "TMS.Web.IDE.NotifyDesign.pas" + 17) + $8
[2D82522D]{TMSWEBCorePkgDEDXE14.bpl} TMS.Web.IDE.NotifyDesign.TTMSWebIDENotifierDesign.ItemInserted (Line 712, "TMS.Web.IDE.NotifyDesign.pas" + 3) + $6
[20F50D66]{designide280.bpl} ComponentDesigner.TComponentRoot.InstanceInserted (Line 5360, "ComponentDesigner.pas" + 9) + $B
[20F923B9]{designide280.bpl} Surface.TDesignSurface.InstanceInserted (Line 282, "Surface.pas" + 0) + $5
[527EFA09]{vcldesigner280.bpl} VCLSurface.TVclDesignSurface.InstanceInserted (Line 3045, "VCLSurface.pas" + 1) + $4
[527F2A33]{vcldesigner280.bpl} VCLSurface.TVclDesignSurface.Notification (Line 4325, "VCLSurface.pas" + 16) + $6
[50E01FF2]{vcl280.bpl } Vcl.Forms.TCustomForm.Notification (Line 4201, "Vcl.Forms.pas" + 42) + $C
[20F18B55]{designide280.bpl} Proxies.NotificationHook (Line 311, "Proxies.pas" + 8) + $B
[50171A74]{rtl280.bpl } System.Classes.TComponent.InsertComponent (Line 16997, "System.Classes.pas" + 12) + $8
[501715A3]{rtl280.bpl } System.Classes.TComponent.Create (Line 16811, "System.Classes.pas" + 2) + $8
[2D3AEBB6]{TMSWEBCorePkgLibDXE14.bpl} WEBLib.XLSX.TWebXLSX.Create (Line 245, "WEBLib.XLSX.pas" + 1) + $4
[21CB938F]{delphicoreide280.bpl} CompPalMgr.TComponentPalettePageItemDelegate.CreateComponent (Line 2703, "CompPalMgr.pas" + 2) + $7
[20F48EC0]{designide280.bpl} ComponentDesigner.TComponentRoot.DoCreateComponent (Line 2511, "ComponentDesigner.pas" + 34) + $17
[20F5449F]{designide280.bpl} ComponentDesigner.TComponentRoot.CreateComponentPos (Line 6565, "ComponentDesigner.pas" + 32) + $24
[5005FF3E]{rtl280.bpl } System.TObject.GetInterface (Line 18413, "System.pas" + 7) + $9
[527F8726]{vcldesigner280.bpl} VCLSurface.TVCLDesignerOleDropTarget.DropComponentStream (Line 6587, "VCLSurface.pas" + 17) + $25
[527E9ACD]{vcldesigner280.bpl} VCLSurface..TGrabHandles (Line 572, "VCLSurface.pas" + 0) + $AB1
[527F7E71]{vcldesigner280.bpl} VCLSurface.TVCLDesignerOleDropTarget.Drop (Line 6410, "VCLSurface.pas" + 7) + $17
[527E9ACD]{vcldesigner280.bpl} VCLSurface..TGrabHandles (Line 572, "VCLSurface.pas" + 0) + $AB1
[205BE1FA]{coreide280.bpl} OleDragAndDrop.TDropSource.Create (Line 474, "OleDragAndDrop.pas" + 4) + $4
[207EF037]{coreide280.bpl} ToolFrm.TToolForm.BeginOleDrag (Line 2233, "ToolFrm.pas" + 46) + $2B
[207EED06]{coreide280.bpl} ToolFrm.TToolForm.BeginOleDrag (Line 2166, "ToolFrm.pas" + 4) + $A
[207EF200]{coreide280.bpl} ToolFrm.TToolForm.PaletteBeginDrag (Line 2265, "ToolFrm.pas" + 3) + $2
[211831F6]{vclide280.bpl} IDECategoryButtons.TIDECategoryButtons.DoBeginDrag (Line 141, "IDECategoryButtons.pas" + 3) + $A
[50E7CA2A]{vcl280.bpl } Vcl.CategoryButtons.TCategoryButtons.MouseMove (Line 2182, "Vcl.CategoryButtons.pas" + 24) + $9
[5006021E]{rtl280.bpl } System.@CallDynaInst (Line 18692, "System.pas" + 4) + $0
[50CC85DE]{vcl280.bpl } Vcl.Controls.TControl.WMMouseMove (Line 7776, "Vcl.Controls.pas" + 8) + $22
[500602C7]{rtl280.bpl } System.TObject.Dispatch (Line 18874, "System.pas" + 11) + $0
[50CC7CCA]{vcl280.bpl } Vcl.Controls.TControl.WndProc (Line 7544, "Vcl.Controls.pas" + 91) + $6
[5006076C]{rtl280.bpl } System.TMonitor.Destroy (Line 19558, "System.pas" + 0) + $0
[50064774]{rtl280.bpl } System.@FinalizeRecord (Line 32815, "System.pas" + 76) + $2
[50CCC54F]{vcl280.bpl } Vcl.Controls.TWinControl.IsControlMouseMsg (Line 10330, "Vcl.Controls.pas" + 1) + $9
[50CC279A]{vcl280.bpl } Vcl.Controls.FindControl (Line 3747, "Vcl.Controls.pas" + 6) + $9
[50CCCDBD]{vcl280.bpl } Vcl.Controls.TWinControl.WndProc (Line 10579, "Vcl.Controls.pas" + 170) + $6
[50E1B255]{vcl280.bpl } Vcl.Forms.TFormStyleHook.WndProc (Line 18211, "Vcl.Forms.pas" + 7) + $4
[50E171DB]{vcl280.bpl } Vcl.Forms.TFormStyleHook.IsStyleBorder (Line 16428, "Vcl.Forms.pas" + 1) + $C
[50E1721C]{vcl280.bpl } Vcl.Forms.TFormStyleHook.HandleMessage (Line 16435, "Vcl.Forms.pas" + 2) + $6
[50E7E4DB]{vcl280.bpl } Vcl.CategoryButtons.TCategoryButtons.WndProc (Line 3140, "Vcl.CategoryButtons.pas" + 24) + $4
[50093C27]{rtl280.bpl } System.SysUtils.AnsiCompareText (Line 7195, "System.SysUtils.pas" + 1) + $2F
[5006076C]{rtl280.bpl } System.TMonitor.Destroy (Line 19558, "System.pas" + 0) + $0
[50064774]{rtl280.bpl } System.@FinalizeRecord (Line 32815, "System.pas" + 76) + $2
[50DD140C]{vcl280.bpl } Vcl.Themes.TStyleHook.CallDefaultProc (Line 7304, "Vcl.Themes.pas" + 6) + $6
[50E13AFE]{vcl280.bpl } Vcl.Forms.TScrollingStyleHook.WMMouseMove (Line 14697, "Vcl.Forms.pas" + 123) + $4
[50DCDE65]{vcl280.bpl } Vcl.Themes.TStyleManager.GetStyle (Line 5789, "Vcl.Themes.pas" + 7) + $D
[50061544]{rtl280.bpl } System.@TryFinallyExit (Line 23404, "System.pas" + 8) + $0
[50DCDF53]{vcl280.bpl } Vcl.Themes.TStyleManager.GetStyle (Line 5800, "Vcl.Themes.pas" + 18) + $1E
[50E02F68]{vcl280.bpl } Vcl.Forms.TCustomForm.WndProc (Line 4762, "Vcl.Forms.pas" + 1) + $37
[50EF0B1B]{vcl280.bpl } Vcl.Styles.TCustomStyle.SourceLoaded (Line 3315, "Vcl.Styles.pas" + 1) + $F
[50DD1DCD]{vcl280.bpl } Vcl.Themes.TStyleHook.WndProc (Line 7684, "Vcl.Themes.pas" + 38) + $6
[50DD1FAE]{vcl280.bpl } Vcl.Themes.TMouseTrackControlStyleHook.WndProc (Line 7783, "Vcl.Themes.pas" + 1) + $4
[50E13CEC]{vcl280.bpl } Vcl.Forms.TScrollingStyleHook.WndProc (Line 14788, "Vcl.Forms.pas" + 0) + $0
[50DD15F2]{vcl280.bpl } Vcl.Themes.TStyleHook.HandleMessage (Line 7389, "Vcl.Themes.pas" + 20) + $6
[50EF1306]{vcl280.bpl } Vcl.Styles.TStyleEngine.HandleMessage (Line 3603, "Vcl.Styles.pas" + 22) + $7
[50DCE084]{vcl280.bpl } Vcl.Themes.TStyleManager.HandleMessage (Line 5858, "Vcl.Themes.pas" + 11) + $11
[50CCAE2F]{vcl280.bpl } Vcl.Controls.TWinControl.DoHandleStyleMessage (Line 9408, "Vcl.Controls.pas" + 0) + $F
[50CCC7B0]{vcl280.bpl } Vcl.Controls.TWinControl.WndProc (Line 10410, "Vcl.Controls.pas" + 1) + $4A
[20F71986]{designide280.bpl} DeskUtil.SetFocusHook (Line 462, "DeskUtil.pas" + 4) + $C
[50E7E4DB]{vcl280.bpl } Vcl.CategoryButtons.TCategoryButtons.WndProc (Line 3140, "Vcl.CategoryButtons.pas" + 24) + $4
[50CCC338]{vcl280.bpl } Vcl.Controls.TWinControl.MainWndProc (Line 10267, "Vcl.Controls.pas" + 3) + $6
[50174218]{rtl280.bpl } System.Classes.StdWndProc (Line 18318, "System.Classes.pas" + 8) + $0
[207ECB8C]{coreide280.bpl} ToolFrm.TToolForm.PaletteHook (Line 1176, "ToolFrm.pas" + 14) + $1E
[50174218]{rtl280.bpl } System.Classes.StdWndProc (Line 18318, "System.Classes.pas" + 8) + $0
[211B4E9F]{vclide280.bpl} IDEVirtualTrees.TVirtualTreeHintWindow.IsHintMsg (Line 7103, "IDEVirtualTrees.pas" + 7) + $13
[50E0D70B]{vcl280.bpl } Vcl.Forms.TApplication.ProcessMessage (Line 11314, "Vcl.Forms.pas" + 23) + $1
[50E0D74E]{vcl280.bpl } Vcl.Forms.TApplication.HandleMessage (Line 11344, "Vcl.Forms.pas" + 1) + $4
[50E0DA8D]{vcl280.bpl } Vcl.Forms.TApplication.Run (Line 11483, "Vcl.Forms.pas" + 27) + $3
[004F6F82]{bds.exe } bds.bds (Line 227, "" + 16) + $2
"

I cannot reproduce this. Retested on several systems.
Are you sure you have a clean setup of only the latest version v2.0.5.0?
Perform first a FULL uninstall from the Windows Control Panel of all TMS WEB Core parts and after this uninstall, verify all parts are removed from your Delphi IDE. Then install the latest version.

Hi Bruno,
Thanks for reply.
I did what you said but unfortunately it didn't work. Could you give me a another solution?

I cannot reproduce this here and have not received such problem report before.
Do you have another machine with Delphi where you can test this?
Can you test this with creating the component in code at runtime?