module 'flet' has no attribute 'alignment'. #5292
Description
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Describe the bug
@FeodorFitsner Hello. I am using flet version 0.28.1. I started a new project with this version and I used the default code.
It returned the following error:
(flet:19828): Atk-CRITICAL **: 01:15:05.719: atk_socket_embed: assertion 'plug_id != NULL' failed
Unhandled error processing page session : Traceback (most recent call last):
File "/home/anonym/.local/lib/python3.13/site-packages/flet/app.py", line 247, in on_session_created
await asyncio.get_running_loop().run_in_executor(
executor, session_handler, page
)
File "/usr/lib64/python3.13/concurrent/futures/thread.py", line 59, in run
result = self.fn(*self.args, **self.kwargs)
File "/home/anonym/flettwentyeight/src/main.py", line 19, in main
alignment=ft.alignment.center,
^^^^^^^^^^^^
AttributeError: module 'flet' has no attribute 'alignment'. Did you mean: 'Alignment'?
embedder.cc (2519): 'FlutterEngineRemoveView' returned 'kInvalidArguments'. Remove view info was invalid. The implicit view cannot be removed.
** (flet:19828): WARNING **: 01:15:10.995: Attempted to set message handler on an FlBinaryMessenger without an engine
** (flet:19828): WARNING **: 01:15:10.995: Attempted to set message handler on an FlBinaryMessenger without an enginepython code:
import flet as ft
def main(page: ft.Page):
counter = ft.Text("0", size=50, data=0)
def increment_click(e):
counter.data += 1
counter.value = str(counter.data)
counter.update()
page.floating_action_button = ft.FloatingActionButton(
icon=ft.Icons.ADD, on_click=increment_click
)
page.add(
ft.SafeArea(
ft.Container(
counter,
alignment=ft.alignment.center,
),
expand=True,
)
)
ft.app(main)Code sample
Code
import flet as ft
def main(page: ft.Page):
counter = ft.Text("0", size=50, data=0)
def increment_click(e):
counter.data += 1
counter.value = str(counter.data)
counter.update()
page.floating_action_button = ft.FloatingActionButton(
icon=ft.Icons.ADD, on_click=increment_click
)
page.add(
ft.SafeArea(
ft.Container(
counter,
alignment=ft.alignment.center,
),
expand=True,
)
)
ft.app(main)To reproduce
flet create newapp
cd newapp
flet run
Expected behavior
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Operating System
Linux
Operating system details
Fedora 42
Flet version
0.28.1
Regression
Yes, it used to work in a previous Flet version (please specify the version in additional details)
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