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Posted: **Thu 03 Sep 2020 19:14**

Hi,

After todays upgrade from Delphi 10.4. to 10.4.1. i got an access violation (null pointer?) at delphi startup.

I the crash is in DataSetManager270.bpl. The only work arround at this time is to disable the DataSetManager270.bpl Package.

Sadly i'm not able to post an attachment.

If you need the bugreport generated by the ide, let me know.

Here are some snippets:

Code: Select all

exception class    : EAccessViolation
exception message  : Zugriffsverletzung bei Adresse 11E53DA4 in Modul 'DataSetManager270.bpl'. Lesen von Adresse 00000000.

...
thread $3dd4:
11e53da4 +018 DataSetManager270.bpl Dsmtoolwindow                GetPreferences
11e5365a +04e DataSetManager270.bpl Dsmtoolwindow                TDsmToolWindow.FormCreate
50e4fd89 +031 vcl270.bpl            Vcl.Forms          3986   +3 TCustomForm.DoCreate
50e4f965 +011 vcl270.bpl            Vcl.Forms          3867   +1 TCustomForm.AfterConstruction
50060379 +01d rtl270.bpl            System            19276   +2 @AfterConstruction
11e4b19d +019 DataSetManager270.bpl Dsmtoolwindow                TDsmToolWindow.CreateForm

Posted: **Thu 10 Sep 2020 14:28**

Thank you for the information.
To solve the issue, you can uncheck "Dataset Manager" in the Select components window during the installation process.

Posted: **Fri 11 Sep 2020 07:51**

Hi Stellar,

Thank you, thats what i've done as a workarround. But isn't the dataset manager needed?

Posted: **Tue 06 Oct 2020 13:44**

TDesktopForm descendants in RAD Studio 10.4.1 are not compatible with previous versions.
Therefore, the plugin compiled in RAD Studio 10.4.0 won't work in RAD Studio 10.4.1.
Unfortunately, we cannot affect that in any way.

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