Failed installation of flet[all]==0.70.0.dev5066

[wschume]

Duplicate Check

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

Describe the bug

Installation fails with pip install flet[all]==0.70.0.dev5066.

In a new Python venv:

python3.11 -m venv venv
venv/bin/pip install 'flet[all]==0.70.0.dev5066'

the log created is:

Collecting flet[all]==0.70.0.dev5066
  Using cached flet-0.70.0.dev5066-py3-none-any.whl (371 kB)
Collecting msgpack>=1.1.0
  Using cached msgpack-1.1.1-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (429 kB)
Collecting oauthlib>=3.2.2
  Using cached oauthlib-3.3.1-py3-none-any.whl (160 kB)
Collecting repath>=0.9.0
  Using cached repath-0.9.0-py3-none-any.whl (4.7 kB)
Collecting httpx>=0.28.1
  Using cached httpx-0.28.1-py3-none-any.whl (73 kB)
Collecting flet-desktop-light==0.70.0.dev5066
  Using cached flet_desktop_light-0.70.0.dev5066-py3-none-manylinux2014_x86_64.manylinux_2_17_x86_64.whl (24.5 MB)
Collecting flet-web
  Using cached flet_web-0.28.3-py3-none-any.whl (3.1 MB)
Collecting flet-desktop
  Using cached flet_desktop-0.28.3-py3-none-manylinux2014_x86_64.manylinux_2_17_x86_64.whl (16.0 MB)
Collecting flet-cli
  Using cached flet_cli-0.28.3-py3-none-any.whl (44 kB)
Collecting anyio
  Using cached anyio-4.9.0-py3-none-any.whl (100 kB)
Collecting idna
  Using cached idna-3.10-py3-none-any.whl (70 kB)
Collecting certifi
  Using cached certifi-2025.6.15-py3-none-any.whl (157 kB)
Collecting httpcore==1.*
  Using cached httpcore-1.0.9-py3-none-any.whl (78 kB)
Collecting h11>=0.16
  Using cached h11-0.16.0-py3-none-any.whl (37 kB)
Collecting six>=1.9.0
  Using cached six-1.17.0-py2.py3-none-any.whl (11 kB)
Collecting qrcode<8.0.0,>=7.4.2
  Using cached qrcode-7.4.2-py3-none-any.whl (46 kB)
Collecting flet-cli
  Using cached flet_cli-0.28.2-py3-none-any.whl (44 kB)
Collecting cookiecutter<3.0.0,>=2.6.0
  Using cached cookiecutter-2.6.0-py3-none-any.whl (39 kB)
Collecting flet-cli
  Using cached flet_cli-0.28.1-py3-none-any.whl (44 kB)
Collecting toml<0.11.0,>=0.10.2
  Using cached toml-0.10.2-py2.py3-none-any.whl (16 kB)
Collecting packaging
  Using cached packaging-25.0-py3-none-any.whl (66 kB)
Collecting watchdog<5.0.0,>=4.0.0
  Using cached watchdog-4.0.2-py3-none-manylinux2014_x86_64.whl (82 kB)
Collecting flet-cli
  Using cached flet_cli-0.27.6-py3-none-any.whl (44 kB)
  Using cached flet_cli-0.27.5-py3-none-any.whl (44 kB)
  Using cached flet_cli-0.27.4-py3-none-any.whl (44 kB)
  Using cached flet_cli-0.27.3-py3-none-any.whl (44 kB)
  Using cached flet_cli-0.27.2-py3-none-any.whl (44 kB)
  Using cached flet_cli-0.27.1-py3-none-any.whl (43 kB)
  Using cached flet_cli-0.27.0-py3-none-any.whl (43 kB)
  Using cached flet_cli-0.26.0-py3-none-any.whl (40 kB)
  Using cached flet_cli-0.25.2-py3-none-any.whl (32 kB)
  Using cached flet_cli-0.25.1-py3-none-any.whl (32 kB)
  Using cached flet_cli-0.25.0-py3-none-any.whl (32 kB)
INFO: pip is looking at multiple versions of repath to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of oauthlib to determine which version is compatible with other requirements. This could take a while.
Collecting oauthlib>=3.2.2
  Using cached oauthlib-3.3.0-py3-none-any.whl (165 kB)
INFO: pip is looking at multiple versions of msgpack to determine which version is compatible with other requirements. This could take a while.
Collecting msgpack>=1.1.0
  Using cached msgpack-1.1.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (403 kB)
INFO: pip is looking at multiple versions of httpcore to determine which version is compatible with other requirements. This could take a while.
Collecting httpcore==1.*
  Using cached httpcore-1.0.8-py3-none-any.whl (78 kB)
Collecting h11<0.15,>=0.13
  Using cached h11-0.14.0-py3-none-any.whl (58 kB)
Collecting httpcore==1.*
  Using cached httpcore-1.0.7-py3-none-any.whl (78 kB)
  Using cached httpcore-1.0.6-py3-none-any.whl (78 kB)
  Using cached httpcore-1.0.5-py3-none-any.whl (77 kB)
  Using cached httpcore-1.0.4-py3-none-any.whl (77 kB)
  Using cached httpcore-1.0.3-py3-none-any.whl (77 kB)
  Using cached httpcore-1.0.2-py3-none-any.whl (76 kB)
INFO: pip is looking at multiple versions of httpcore to determine which version is compatible with other requirements. This could take a while.
  Using cached httpcore-1.0.1-py3-none-any.whl (76 kB)
  Using cached httpcore-1.0.0-py3-none-any.whl (76 kB)
INFO: pip is looking at multiple versions of httpx to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of flet to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of <Python from Requires-Python> to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of flet-desktop-light to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of flet[all] to determine which version is compatible with other requirements. This could take a while.

The conflict is caused by:
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.28.3 depends on flet==0.28.3
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.28.2 depends on flet==0.28.2
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.28.1 depends on flet==0.28.1
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.27.6 depends on flet==0.27.6
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.27.5 depends on flet==0.27.5
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.27.4 depends on flet==0.27.4
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.27.3 depends on flet==0.27.3
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.27.2 depends on flet==0.27.2
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.27.1 depends on flet==0.27.1
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.27.0 depends on flet==0.27.0
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.26.0 depends on flet==0.26.0
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.25.2 depends on flet==0.25.2
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.25.1 depends on flet==0.25.1
    flet[all] 0.70.0.dev5066 depends on flet 0.70.0.dev5066 (from https://files.pythonhosted.org/packages/6b/ce/b713cf64390b77f5d108e9d300f9307d2c56a6bbf6f2b60f8f6fa2287f11/flet-0.70.0.dev5066-py3-none-any.whl#sha256=440be5465ffcbf29fb81fb78e30f6835bd3cbe8e8e61c385f8439cb2cfe5559a (from https://pypi.org/simple/flet/) (requires-python:>=3.10))
    flet-desktop-light 0.70.0.dev5066 depends on flet==0.70.0.dev5066
    flet-cli 0.25.0 depends on flet==0.25.0

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

ERROR: Cannot install flet and flet[all]==0.70.0.dev5066 because these package versions have conflicting dependencies.
ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts

The installation works without using the [all] argument:

python3.11 -m venv venv
venv/bin/pip install 'flet==0.70.0.dev5066'

But then the example code in https://flet.dev/blog/introducing-flet-1-0-alpha/#basic-declarative-flet-app-example does not run and raises errors.

Code sample

empty

To reproduce

Run the installation of the venv with

python3.11 -m venv venv
venv/bin/pip install 'flet[all]==0.70.0.dev5066'

Expected behavior

A clean installation without any errors.

Screenshots / Videos

No response

Operating System

Linux

Operating system details

Ubuntu 22.04.5 LTS

Flet version

0.70.0.dev5066

Regression

No, it isn't

Suggestions

No response

Logs

Logs

[Paste your logs here]

Additional details

No response

[marc-svg]

Hello,
Same issue, but I succed without the '[all]', and during dev what is needed is successfully installed.

Perhaps it helps

[wschume]

@marc-svg, thank you for the reply. also tried installing it without the [all] flag (see issue text above at the bottom). But I was not able to run the example behind the link.

[marc-svg]

working for me.

try install desktop framework:
pip install flet_desktop==0.70.0.dev5066

and try your code again

[wschume]

Tried to only install pip install flet_desktop==0.70.0.dev5066

and ran this script:

from dataclasses import dataclass

import flet as ft


@dataclass
class AppState:
    count: int

    def increment(self):
        self.count += 1


def main(page: ft.Page):
    state = AppState(count=0)

    page.floating_action_button = ft.FloatingActionButton(
        icon=ft.Icons.ADD, on_click=state.increment
    )
    page.add(
        ft.ControlBuilder(
            state,
            lambda state: ft.SafeArea(
                ft.Center(ft.Text(value=f"{state.count}", size=50)),
                expand=True,
            ),
            expand=True,
        )
    )


ft.run(main)

and got the following error:

package:media_kit_libs_linux registered.
hideWindowOnStart: null
Flet View is running in Desktop mode
Args contain a path to PID file: /tmp/Hej6pW6fi6equ1OH7h7d}
Args contain a path assets directory: /home/niklas/tmp/flet/assets}
Page URL: /tmp/sMhGbhIpVf
Page updated: TargetPlatform.linux TargetPlatform.linux
Page.initState: 1
Page.didChangeDependencies: 1
Page.build: 1
Page navigator build: 1
Route changed: /
Page navigator build: 1
Platform brightness updated: Brightness.light
Page media updated: PageMediaData
Page size updated: Instance of 'Size'
Window state updated: {maximized: false, minimized: false, full_screen: false, always_on_top: false, focused: false, visible: true, minimizable: true, maximizable: true, resizable: true, prevent_close: false, skip_task_bar: false, width: 1280.0, height: 720.0, top: 310.0, left: 638.0, opacity: 1.0}
Notify Page(1)
Page updated: TargetPlatform.linux TargetPlatform.linux
Registering web client with route: /
Connecting to Flet backend /tmp/sMhGbhIpVf...
Connecting to Socket /tmp/sMhGbhIpVf...
Connected to: InternetAddress('/tmp/sMhGbhIpVf', Unix)
_send: MessageAction.registerClient {session_id: null, page_name: tmp/sMhGbhIpVf, page: {route: /, pwa: false, web: false, debug: false, wasm: false, multi_view: false, platform_brightness: light, width: 1280.0, height: 720.0, platform: linux, window: {maximized: false, minimized: false, full_screen: false, always_on_top: false, focused: false, visible: true, minimizable: true, maximizable: true, resizable: true, prevent_close: false, skip_task_bar: false, width: 1280.0, height: 720.0, top: 310.0, left: 638.0, opacity: 1.0}, media: {padding: {top: 0.0, right: 0.0, bottom: 0.0, left: 0.0}, view_padding: {top: 0.0, right: 0.0, bottom: 0.0, left: 0.0}, view_insets: {top: 0.0, right: 0.0, bottom: 0.0, left: 0.0}}}}
Page.didUpdateWidget: 1
Page.build: 1
Page navigator build: 1
Unhandled error processing page session p6KJAzzfxPOhgZFR: Traceback (most recent call last):
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/app.py", line 277, in on_session_created
    main(session.page)
  File "/home/niklas/tmp/flet/main.py", line 20, in main
    page.add(
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/controls/page_view.py", line 153, in add
    self.update()
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/controls/page.py", line 430, in update
    self.__update(self)
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/controls/page.py", line 441, in __update
    self.get_session().patch_control(c)
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/messaging/session.py", line 96, in patch_control
    patch, added_controls, removed_controls = self.__get_update_control_patch(
                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/messaging/session.py", line 274, in __get_update_control_patch
    patch, added_controls, removed_controls = ObjectPatch.from_diff(
                                              ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/controls/object_patch.py", line 242, in from_diff
    list(builder.get_added_controls()),
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/controls/object_patch.py", line 313, in get_added_controls
    yield from self._configure_dataclass(
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/controls/object_patch.py", line 869, in _configure_dataclass
    item.before_update()
  File "/home/niklas/tmp/flet/venv/lib/python3.11/site-packages/flet/controls/control_builder.py", line 57, in before_update
    self.content = self._builder(self._state)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/niklas/tmp/flet/main.py", line 24, in <lambda>
    ft.Center(ft.Text(value=f"{state.count}", size=50)),
    ^^^^^^^^^
AttributeError: module 'flet' has no attribute 'Center'

Received packet: 909
Received message: [1, {session_id: p6KJAzzfxPOhgZFR, page_patch: {_i: 1, _c: Page, views: [{_i: 5, _c: View}], _overlay: {_i: 6, _c: Overlay}, _dialogs: {_i: 7, _c: Dialogs}, width: 1280.0, height: 720.0, media: {padding: {left: 0.0, top: 0.0, right: 0.0, bottom: 0.0}, view_padding: {left: 0.0, top: 0.0, right: 0.0, bottom: 0.0}, view_insets: {left: 0.0, top: 0.0, right: 0.0, bottom: 0.0}}, window: {_i: 2, _c: Window, width: 1280.0, height: 720.0, top: 310.0, left: 638.0, focused: false}, browser_context_menu: {_i: 9, _c: BrowserContextMenu}, shared_preferences: {_i: 10, _c: SharedPreferences}, clipboard: {_i: 11, _c: Clipboard}, storage_paths: {_i: 12, _c: StoragePaths}, url_launcher: {_i: 13, _c: UrlLauncher}, _user_services: {_i: 14, _c: ServiceRegistry}, _page_services: {_i: 15, _c: ServiceRegistry, services: [{_i: 9, _c: BrowserContextMenu}, {_i: 10, _c: SharedPreferences}, {_i: 11, _c: Clipboard}, {_i: 13, _c: UrlLauncher}, {_i: 12, _c: StoragePaths}]}, route: /, platform: linux, platform_brightness: light}, error: }]
Do not set cookie!
Notify Page(1)
Page updated: TargetPlatform.linux TargetPlatform.linux
Send queue: 4
_send: MessageAction.updateControl {id: 1, props: {platform_brightness: light}}
_send: MessageAction.updateControl {id: 1, props: {media: {padding: {top: 0.0, right: 0.0, bottom: 0.0, left: 0.0}, view_padding: {top: 0.0, right: 0.0, bottom: 0.0, left: 0.0}, view_insets: {top: 0.0, right: 0.0, bottom: 0.0, left: 0.0}}}}
_send: MessageAction.updateControl {id: 1, props: {width: 1280.0, height: 720.0}}
_send: MessageAction.updateControl {id: 2, props: {maximized: false, minimized: false, full_screen: false, always_on_top: false, focused: false, visible: true, minimizable: true, maximizable: true, resizable: true, prevent_close: false, skip_task_bar: false, width: 1280.0, height: 720.0, top: 310.0, left: 638.0, opacity: 1.0}}
Received packet: 90
Received message: [6, {message: The application encountered an error: module 'flet' has no attribute 'Center'}]
Page.didUpdateWidget: 1
Init service registry: 15
_onServicesUpdated(5)
BrowserContextMenuService(9).init: {}
SharedPreferencesService(10).init: {}
ClipboardService(11).init: {}
UrlLauncherService(13).init: {}
StoragePaths(12).init: {}
Init service registry: 14
_onServicesUpdated(0)
Page.build: 1
Page navigator build: 1
View.initState: 5
View.build: 5
ScrollableControl build: 5
Window.initState()
Window.didChangeDependencies: 2

(flet:4423): Gdk-ERROR **: 20:09:50.214: The program 'flet' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadAccess (attempt to access private resource denied)'.
  (Details: serial 424 error_code 10 request_code 152 (GLX) minor_code 26)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

[marc-svg]

Here is my pip list:

[wschume]

This is mine:

Package           Version
----------------- --------------
anyio             4.9.0
certifi           2025.6.15
flet              0.70.0.dev5066
flet-desktop      0.70.0.dev5066
h11               0.16.0
httpcore          1.0.9
httpx             0.28.1
idna              3.10
msgpack           1.1.1
oauthlib          3.3.1
pip               22.0.2
repath            0.9.0
setuptools        59.6.0
six               1.17.0
sniffio           1.3.1
typing_extensions 4.14.0

And even after installing flet_cli I still get the same error when running the example script.

[marc-svg]

I used (on Windows):

pip install flet==0.70.0.dev5066
pip install flet_desktop==0.70.0.dev5066
pip install flet_cli==0.70.0.dev5066

and then -> flet run
and small bug flet has no Center.... ->just remove the ft.Center(...)

[marc-svg]

you are on Linux right ?

[wschume]

Correct, I am on Linux. And funny, removing the ft.Center does resolve the issue. But somehow I have a feeling, that this installation is not very sound and if I'd start developing now, I'd run into many issues.

[marc-svg]

v1.0 (0.70) is alpha
for now I keep my old apps in flet 0.28.3
just trying alpha :)

[FeodorFitsner]

Center was "experimental" control which is now removed as we have Container with alignment.

[wschume]

@FeodorFitsner, thank you for your feedback! I'll give the alpha a try right away. You might want to alter the blog post and remove the ft.Center, I think this would be a starting point for the alpha for many users.
btw: It's great to see this project is going v1.0! I was almost worried that there wasn't a blog post for so long ;)

[FeodorFitsner]

ft.Center has been removed, thank you!

I'm closing this issue as it's been sorted out.

[wschume]

@FeodorFitsner, the ft.Center was only a side quest of this issue. The main issue still prevails with the fails during the venv/bin/pip install 'flet[all]==0.70.0.dev5066.