Access Violation when code completion was invoked [with CnPack IDE Wizards]

[Fantella1978]

• Install CnPack IDE Wizards (CnWizards 1.3.1.1181 for 12.2 in my case)
• Create a new Delphi VCL application project
• Double-click on a form and fast type from the keyboard "self."
  Exp: No AV
  Act: AV

Duplicates:
https://embt.atlassian.net/servicedesk/customer/portal/1/RSS-3644
https://embt.atlassian.net/servicedesk/customer/portal/1/RSS-2656
https://embt.atlassian.net/servicedesk/customer/portal/1/RSS-2293
https://embt.atlassian.net/servicedesk/customer/portal/1/RSS-1830
https://embt.atlassian.net/servicedesk/customer/portal/1/RSS-1312
https://embt.atlassian.net/servicedesk/customer/portal/1/RSS-972
https://embt.atlassian.net/servicedesk/customer/portal/1/RSS-703
https://embt.atlassian.net/servicedesk/customer/portal/3/RSB-517

Stack Trace:
[640F1DF9]{coreide290.bpl} CodCmplt.TCodeCompletionManager.HandleAsyncInvokeCodeCompletionResult (Line 1345, "CodCmplt.pas" + 8) + $0
[66260B50]{rtl290.bpl } System.TMonitor.Enter (Line 20001, "System.pas" + 4) + $2
[66260D3A]{rtl290.bpl } System.TMonitor.Exit (Line 20127, "System.pas" + 2) + $7
[6625A294]{rtl290.bpl } System.@FreeMEM (Line 5010, "System.pas" + 20) + $0
[6625FF8C]{rtl290.bpl } System.TObject.FreeInstance (Line 18340, "System.pas" + 2) + $2
[66260756]{rtl290.bpl } System.@ClassDestroy (Line 19704, "System.pas" + 0) + $2
[66260075]{rtl290.bpl } System.TObject.Destroy (Line 18395, "System.pas" + 1) + $4
[640FBCBE]{coreide290.bpl} CodCmplt.TAsyncStatusList.FindId (Line 4976, "CodCmplt.pas" + 9) + $D
[640F1DE8]{coreide290.bpl} CodCmplt.TCodeCompletionManager.HandleAsyncInvokeCodeCompletionResult (Line 1339, "CodCmplt.pas" + 2) + $8
[640F1D70]{coreide290.bpl} CodCmplt.TCodeCompletionManager.AsyncInvokeCodeCompletionResult (Line 1305, "CodCmplt.pas" + 24) + $12
[6144865D]{IDELSP290.bpl} LSPCodCmplt.TLSPKibitzManager.GetCompletionControlCharacters (Line 1164, "LSPCodCmplt.pas" + 25) + $133
[6143A198]{IDELSP290.bpl} BaseLSPServer.TLSPServer.DoSendString (Line 1115, "BaseLSPServer.pas" + 3) + $0
[6626A71C]{rtl290.bpl } System.UTF8ToUnicodeString (Line 40629, "System.pas" + 7) + $5
[61439467]{IDELSP290.bpl} BaseLSPServer.TLSPServer.LSPServerNewLine$ActRec.$1$Body (Line 930, "BaseLSPServer.pas" + 2) + $8
[6638003B]{rtl290.bpl } System.Classes.CheckSynchronize (Line 16336, "System.Classes.pas" + 34) + $E
[607B1FCF]{fmx290.bpl } FMX.Platform.Win.TPlatformWin.ThreadSync (Line 3619, "FMX.Platform.Win.pas" + 3) + $2
[6638477C]{rtl290.bpl } System.Classes.StdWndProc (Line 19085, "System.Classes.pas" + 9) + $2
[5C8D9D9A]{CnWizards_D120A.DLL} Unknown function at __dbk_fcall_wrapper + $B805A
[65AC3927]{vcl290.bpl } Vcl.Forms.TApplication.ProcessMessage (Line 13282, "Vcl.Forms.pas" + 23) + $1
[65AC3952]{vcl290.bpl } Vcl.Forms.TApplication.ProcessMessages (Line 13304, "Vcl.Forms.pas" + 1) + $4
[5CAF7C11]{CnWizards_D120A.DLL} Unknown function at INITWIZARD0001 + $1E6A0D
[5CAF7FFE]{CnWizards_D120A.DLL} Unknown function at INITWIZARD0001 + $1E6DFA
[5CAF8216]{CnWizards_D120A.DLL} Unknown function at INITWIZARD0001 + $1E7012
[5CB01CD8]{CnWizards_D120A.DLL} Unknown function at INITWIZARD0001 + $1F0AD4
[5CB011A9]{CnWizards_D120A.DLL} Unknown function at INITWIZARD0001 + $1EFFA5
[5CB01097]{CnWizards_D120A.DLL} Unknown function at INITWIZARD0001 + $1EFE93
[65A3FDD3]{vcl290.bpl } Vcl.ExtCtrls.TTimer.Timer (Line 3253, "Vcl.ExtCtrls.pas" + 1) + $E
[65A3FCB3]{vcl290.bpl } Vcl.ExtCtrls.TTimer.WndProc (Line 3211, "Vcl.ExtCtrls.pas" + 4) + $7
[6638477C]{rtl290.bpl } System.Classes.StdWndProc (Line 19085, "System.Classes.pas" + 9) + $2
[5C8D9D9A]{CnWizards_D120A.DLL} Unknown function at __dbk_fcall_wrapper + $B805A
[65AC3927]{vcl290.bpl } Vcl.Forms.TApplication.ProcessMessage (Line 13282, "Vcl.Forms.pas" + 23) + $1
[65AC396A]{vcl290.bpl } Vcl.Forms.TApplication.HandleMessage (Line 13312, "Vcl.Forms.pas" + 1) + $4
[65AC3CA9]{vcl290.bpl } Vcl.Forms.TApplication.Run (Line 13451, "Vcl.Forms.pas" + 27) + $3
[00408AD2]{bds.exe } bds.bds + $DE

[cnpack]

Yes. It's a known bug for Async LSP mode in Delphi, re-entrance related.
Now still no clue to resolve.

[myonlylonely]

Same issue here. Is there a way to at least hide the dialog, it's really annoying.

[cnpack]

In Delphi 13, we can change Code Insight back to Classic, not LSP to avoid this Problem.

[raller09]

Hi,
I probably have the same problem with Delphi 13.

In RSS-1312, @marcocantu assumes it's a bug in CNPack.

Are you in contact with Embarcadero?
I think they're focused on providing a good customer experience.

Perhaps you could consult (if necessary) with
@marcocantu
or
@checkdigits (You can also email me directly at ian.barker@embarcadero.com and I will respond to you personally.)
to find the cause.

Thank you

[cnpack]

In fact, we've send email about this problem to both of these 2 sirs some months ago.

We guess there maybe exists an re-entrance and conflict problem about the asych interface provided by Open ToolsAPI, from CnPack and Delphi Code Insight itself.
But we have no condition to do more investigate on that, and also can't control how to avoid re-enter for this API, so the bug keeps now.

[checkdigits]

I have some good news!

This issue has been resolved by Embarcadero and will be available in a future RAD Studio release.

[myonlylonely]

@checkdigits It's really good news! I use CnPack heavily, and can't use IDE without it. I've been stuck at Delphi 12.3 since Delphi 13 remove the refactor function(mostly rename function names), would you consider to release a fix also for the Delphi 12.3 line?

[cnpack]

A very good news!
Too eager to wait for new release to try.