Comments (3)
chaotic-dev
commented on September 27, 2024
I've been able to build the flet bundle for web/Linux and a presumed fix to this issue but I am unable to get them to run for tests due to the following error repeated with multiple variations. If anyone knows how to fix this or is willing to test that my changes work, that would be appreciated
** (flet:303499): CRITICAL **: ... : assertion 'FL_IS_*' failed
from flet.
ndonkoHenri
commented on September 27, 2024
Can you share your code and the steps to repro?
from flet.
chaotic-dev
commented on September 27, 2024
Can you share your code and the steps to repro?
Code with changes is here but I get the same issue with the main branch
I attempted to follow the steps from CONTRIBUTING.md
Flutter installed:
[✓] Flutter (Channel stable, 3.22.2, on Pop!_OS 22.04 LTS
6.8.0-76060800daily20240311-generic, locale en_US.UTF-8)
[✗] Android toolchain - develop for Android devices
✗ Unable to locate Android SDK.
Install Android Studio from:
https://developer.android.com/studio/index.html
On first launch it will assist you in installing the Android SDK
components.
(or visit https://flutter.dev/docs/get-started/install/linux#android-setup
for detailed instructions).
If the Android SDK has been installed to a custom location, please use
`flutter config --android-sdk` to update to that location.
[✓] Chrome - develop for the web
[✓] Linux toolchain - develop for Linux desktop
[!] Android Studio (not installed)
[✓] VS Code (version 1.89.1)
[✓] Connected device (2 available)
[✓] Network resources
Cloned the main branch and set the variables, built the project successfully for linux and web
export FLET_VIEW_PATH=/$PATH_TO_FLET/client/build/linux/x64/release/bundle
export FLET_WEB_PATH=/$PATH_TO_FLETt/client/build/web
cd $PATH_TO_FLET/client
flutter build linux
flutter build webInstalled poetry, initialized, and ran test
curl -sSL https://install.python-poetry.org | python3 -
cd $PATH_TO_FLET/sdk/python
poetry install
# Doesn't display properly
poetry run flet run -w -p 8550 playground/hello.py
cd $PATH_TO_FLET/client
# Leads to errors mentioned previously
flutter run
Connected devices:
Linux (desktop) • linux • linux-x64 • Pop!_OS 22.04 LTS
6.8.0-76060800daily20240311-generic
Chrome (web) • chrome • web-javascript • Chromium 125.0.6422.141
[1]: Linux (linux)
[2]: Chrome (chrome)
Please choose one (or "q" to quit): 1
Launching lib/main.dart on Linux in debug mode...
Building Linux application...
✓ Built build/linux/x64/debug/bundle/flet
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlEventChannel *fl_event_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlTextureRegistrar *fl_plugin_registrar_get_texture_registrar(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.738: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.738: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_handler_find: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): GLib-GObject-WARNING **: 14:54:03.739: invalid (NULL) pointer instance
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
(flet:408553): Gtk-CRITICAL **: 14:54:03.739: gtk_container_forall: assertion 'GTK_IS_CONTAINER (container)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
(flet:408553): GLib-GObject-CRITICAL **: 14:54:03.739: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
** (flet:408553): CRITICAL **: 14:54:03.739: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
package:media_kit_libs_linux registered.Test files:
hello.py
import flet
from flet import Page, Text
def main(page: Page):
page.add(Text("Hello, world!"))
flet.app(target=main)test.py
import flet as ft
def main(page: ft.Page):
page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
def close_anchor(e):
text = f"Color {e.control.data}"
anchor.value = text
anchor.update()
# print(f"closing view from {text}")
# anchor.close_view(text)
anchor = ft.SearchBar(
view_elevation=4,
divider_color=ft.colors.AMBER,
bar_hint_text="Search colors...",
view_hint_text="Choose a color from the suggestions...",
controls=[
ft.ListTile(title=ft.Text(f"Color {i}"), on_click=close_anchor, data=i)
for i in range(10)
],
)
page.add(
ft.Row(
alignment=ft.MainAxisAlignment.CENTER,
controls=[
ft.OutlinedButton(
"Open Search View",
on_click=lambda _: anchor.open_view(),
),
],
),
anchor,
)
ft.app(main)from flet.
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from flet.