main.exe runs with "Unhandled exception in script"

[Vlad19Cher]

Duplicate Check

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

Describe the bug

I've packed the main.py to main.exe in Windows10

flet pack main.py

when it runs it crashes with Unhandled exception in script

Traceback (most recent call last):
File "test.py", line 7, in
File "flet\app.py", line 64, in app
File "asyncio\runners.py", line 194, in run
File "asyncio\runners.py", line 118, in run
File "asyncio\base_events.py", line 687, in run_until_complete
File "flet\app.py", line 189, in app_async
File "flet_desktop_init_.py", line 39, in open_flet_view_async
File "flet_desktop_init_.py", line 87, in _locate_and_unpack_flet_view
File "flet_desktop_init.py", line 177, in __download_flet_client
File "urllib\request.py", line 240, in urlretrieve
File "urllib\request.py", line 215, in urlopen
File "urllib\request.py", line 521, in open
File "urllib\request.py", line 630, in http_response
File "urllib\request.py", line 559, in error
File "urllib\request.py", line 492, in _call_chain
File "urllib\request.py", line 639, in http_error_default
urllib.error.HTTPError: HTTP Error 404: Not Found

I thought it was my fault, but this peace of code won't start either.

import flet as ft

def main(page: ft.Page):
page.title = "Hello Flet"
page.add(ft.Text("Hello, World!"))

ft.app(target=main)

It works fine in VS Code, my main.py works fine in VS Code but exe-file not work at all

Why

Code sample

Code

import flet as ft

def main(page: ft.Page):
    page.title = "Hello Flet"
    page.add(ft.Text("Hello, World!"))

ft.app(target=main)

To reproduce

import flet
import pyinstaller

pack this code

import flet as ft

def main(page: ft.Page):
    page.title = "Hello Flet"
    page.add(ft.Text("Hello, World!"))

ft.app(target=main)

to an exe file

flet pack main.py

try to run it

Expected behavior

No response

Screenshots / Videos

Captures

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Operating System

Windows

Operating system details

windows 10

Flet version

0.25.1

Regression

No, it isn't

Suggestions

A asked chtGPT. He doesn't know )

Logs

Logs

[Paste your logs here]

Additional details

No response

[Vlad19Cher]

It works perfectly now. Thank you!
It seems that it started working as soon as the flet-windows.zip appeared in the repository

[NaotoTakata]

How did you solve the problem?
I'm still stuck.

[Vlad19Cher]

Specifically, it didn’t work for me because when running the .exe, the program was trying to find and download the flet-windows.zip file in the repository at https://github.com/flet-dev/flet/releases. I find such a developer's decision to be quite controversial. Since it wasn’t available, an error occurred. And it wasn’t just me experiencing this issue, judging by the list of open issues. As soon as flet-windows.zip appeared in the repository, everything started working fine.

Additionally, you can completely uninstall Flet and reinstall it, or install it in a virtual environment (venv).

pip install --no-cache-dir flet[all]

[FeodorFitsner]

I find such a developer's decision to be quite controversial.

This is regression which is going to be fixed: #4549