urllib.error.HTTPError: HTTP Error 404: Not Found

[Wanna-Pizza]

Duplicate Check

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

Describe the bug

PS H:\Flutter\project_flet\flet\sdk\python\playground> poetry run python main.py
Traceback (most recent call last):
  File "H:\Flutter\project_flet\flet\sdk\python\playground\main.py", line 7, in <module>
    flet.app(target=main)
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet\src\flet\app.py", line 51, in app
    return asyncio.run(
           ^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 190, in run     
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 118, in run     
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_events.py", line 650, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet\src\flet\app.py", line 175, in app_async    
    fvp, pid_file = await open_flet_view_async(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet-desktop\src\flet_desktop\__init__.py", line 38, in open_flet_view_async
    args, flet_env, pid_file = __locate_and_unpack_flet_view(
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet-desktop\src\flet_desktop\__init__.py", line 86, in __locate_and_unpack_flet_view
    zip_file = __download_flet_client("flet-windows.zip")
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet-desktop\src\flet_desktop\__init__.py", line 176, in __download_flet_client
    urllib.request.urlretrieve(flet_url, temp_arch)
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 241, in urlretrieve
    with contextlib.closing(urlopen(url, data)) as fp:
                            ^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 216, in urlopen  
    return opener.open(url, data, timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 525, in open     
    response = meth(req, response)
               ^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 634, in http_response
    response = self.parent.error(
               ^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 563, in error    
    return self._call_chain(*args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 496, in _call_chain
    result = func(*args)
             ^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 643, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found
PS H:\Flutter\project_flet\flet\sdk\python\playground>

This appear when I do poetry run python main.py

Code sample

Code

import flet
from flet import Page, Text

def main(page: Page):
    page.add(Text("Hello, world!"))

flet.app(target=main)

To reproduce

Uhm. https://www.youtube.com/watch?v=tqf8dEQwBns&list=PLHYEoLmkidc1YrgREPrJvhr_JEv00EFP8

I just doing as this guy on video.

Expected behavior

To work it

Screenshots / Videos

Captures

[Upload media here]

Operating System

Windows

Operating system details

Windows 11

Flet version

0.23.1

Regression

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

Suggestions

No response

Logs

Logs

PS H:\Flutter\project_flet\flet\sdk\python\playground> poetry run python main.py
Traceback (most recent call last):
  File "H:\Flutter\project_flet\flet\sdk\python\playground\main.py", line 7, in <module>
    flet.app(target=main)
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet\src\flet\app.py", line 51, in app
    return asyncio.run(
           ^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 190, in run     
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 118, in run     
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_events.py", line 650, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet\src\flet\app.py", line 175, in app_async    
    fvp, pid_file = await open_flet_view_async(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet-desktop\src\flet_desktop\__init__.py", line 38, in open_flet_view_async
    args, flet_env, pid_file = __locate_and_unpack_flet_view(
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet-desktop\src\flet_desktop\__init__.py", line 86, in __locate_and_unpack_flet_view
    zip_file = __download_flet_client("flet-windows.zip")
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "H:\Flutter\project_flet\flet\sdk\python\packages\flet-desktop\src\flet_desktop\__init__.py", line 176, in __download_flet_client
    urllib.request.urlretrieve(flet_url, temp_arch)
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 241, in urlretrieve
    with contextlib.closing(urlopen(url, data)) as fp:
                            ^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 216, in urlopen  
    return opener.open(url, data, timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 525, in open     
    response = meth(req, response)
               ^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 634, in http_response
    response = self.parent.error(
               ^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 563, in error    
    return self._call_chain(*args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 496, in _call_chain
    result = func(*args)
             ^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python311\Lib\urllib\request.py", line 643, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found
PS H:\Flutter\project_flet\flet\sdk\python\playground>

Additional details

No response

[FeodorFitsner]

Are you trying to run Flet from sources, not with pip install flet?
Running from sources is used mostly when developing Flet itself.

[Wanna-Pizza]

Okay. I installed flet with pip install flet. Now the new problem is occurs.

When I run "poetry run flet run -w -p 8550 .\hello.py" there is no attribute 'bgblur'

But I added this new attribute in my flet project.

Im using Visual Code.

So, can you help or explain what I can do with that?

I think poetry run flet run uses the global Flet, but not the one in the project. Accordingly, even when I do a Build or update everything - still the error that the attribute is not found

[sethstenzel]

Hello @FeodorFitsner, I had the same original issue with a fresh install. I setup a new Windows VM specifically to attempt to contribute and am getting the original error after following the steps in the contrib guide. This statement "Running from sources is used mostly when developing Flet itself." is what I am trying to do, is there more information that should be in the contrib guide, or do you know the solution to this issue?

[FeodorFitsner]

Are you running from sources? What error do you get exactly?

[sethstenzel]

urllib.error.HTTPError: HTTP Error 404: Not Found

Yes running from sources, as the contrib tab states to do. I think maybe documentation on contributions are out of date or lacking details.
Error