unknown error

[3mora2]

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• I have searched the opened issues and there are no duplicates

Describe the bug

the code work fine, but some time show error like

asyncio:ERROR:Future exception was never retrieved
future: <Future finished exception=AssertionError()>
Traceback (most recent call last):
  File "concurrent\futures\thread.py", line 58, in run
  File "flet\core\page.py", line 948, in wrapper
  File "frontend\Components\TabAddProduct\images.py", line 277, in func_suggest_image
  File "flet\core\page.py", line 1429, in open
  File "flet\core\control.py", line 326, in update
  File "flet\core\page.py", line 723, in update
  File "flet\core\page.py", line 835, in __update
  File "flet\core\page.py", line 851, in __prepare_update
  File "flet\core\control.py", line 487, in build_update_commands
  File "flet_core\control.py", line 483, in build_update_commands
AssertionError

line 277, in func_suggest_image

        self.page.open(
            DialogSearchImage(images_for_drop=self.images(),
                              on_dismiss=lambda x: self.show_image(),
                              update_images_session=self.update_images_session,
                              images=images,
                              title=title,
                              )
        )

in genral it's work fine, but when error show , more error will show

asyncio:ERROR:Future exception was never retrieved
future: <Future finished exception=AssertionError()>
Traceback (most recent call last):
  File "concurrent\futures\thread.py", line 58, in run
  File "flet\core\page.py", line 948, in wrapper
  File "frontend\HomePageParts\appbar.py", line 25, in show_drawer
  File "flet\core\page.py", line 1429, in open
  File "flet\core\control.py", line 326, in update
  File "flet\core\page.py", line 723, in update
  File "flet\core\page.py", line 835, in __update
  File "flet\core\page.py", line 851, in __prepare_update
  File "flet\core\control.py", line 487, in build_update_commands
  File "flet_core\control.py", line 483, in build_update_commands
AssertionError

ALister:INFO:Prepare To Close
ALister:ERROR:on_window_event
Traceback (most recent call last):
  File "frontend\HomePage.py", line 185, in on_window_event
  File "flet\core\page.py", line 482, in destroy
  File "flet\core\page.py", line 721, in update
  File "flet\core\page.py", line 835, in __update
  File "flet\core\page.py", line 851, in __prepare_update
  File "flet\core\control.py", line 487, in build_update_commands
  File "flet\core\control.py", line 487, in build_update_commands
  File "flet_core\control.py", line 483, in build_update_commands
AssertionError

line 185, in on_window_event

        if e.data == "close":
            self.page.window.destroy()

Code sample

Code

[Paste your code here]

To reproduce

error start with page.open ft.AlertDialog

Expected behavior

No response

Screenshots / Videos

Captures

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Operating System

Windows

Operating system details

win10

Flet version

last version

Regression

Yes, it used to work in a previous Flet version (please specify the version in additional details)

Suggestions

No response

Logs

Logs

[Paste your logs here]

Additional details

No response

[ndonkoHenri]

Please share the assertion error-message. Also, will be great if you could come up with a reproducible code sample to test your issue.

File "flet\core\control.py", line 487, in build_update_commands
File "flet_core\control.py", line 483, in build_update_commands

Additionally, this is quite strange, as in the latest version 0.25.2, we only have flet\core and no more flet_core.
I will suggest you install Flet in a new virtual env using pip install 'flet[all]'