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flet 0.23 critical erreur when runing application / the application does not want to run ans stop #3490

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logololo opened this issue Jun 19, 2024 · 11 comments · Fixed by #3495
Closed
1 task done

flet 0.23 critical erreur when runing application / the application does not want to run ans stop #3490

logololo opened this issue Jun 19, 2024 · 11 comments · Fixed by #3495
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@FeodorFitsner
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@logololo
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Describe the bug

the application does not want to run with FLET v0.23 but work perfectly with flet 0.22

Code

import flet as ft

def main(page: ft.Page):

page.add(
    ft.Text("Hello, World!", size=30),
)

ft.app(target=main)

To reproduce

** (flet:5945): CRITICAL **: 14:14:10.302: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

Expected behavior

a simple ' hello world ' text

Screenshots

** (flet:5615): CRITICAL **: 14:04:51.078: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlEventChannel *fl_event_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed
package:media_kit_libs_linux registered.

** (flet:5615): CRITICAL **: 14:04:51.078: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.078: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlTextureRegistrar *fl_plugin_registrar_get_texture_registrar(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_object_ref: assertion 'G_IS_OBJECT (object)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_object_ref: assertion 'G_IS_OBJECT (object)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_object_ref: assertion 'G_IS_OBJECT (object)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_handler_find: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.079: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): GLib-GObject-WARNING **: 14:04:51.079: invalid (NULL) pointer instance

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.079: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlView *fl_plugin_registrar_get_view(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

(flet:5615): Gtk-CRITICAL **: 14:04:51.080: gtk_container_forall: assertion 'GTK_IS_CONTAINER (container)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlBinaryMessenger *fl_engine_get_binary_messenger(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlTextureRegistrar *fl_engine_get_texture_registrar(FlEngine *): assertion 'FL_IS_ENGINE(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlPluginRegistrar *fl_plugin_registrar_new(FlView *, FlBinaryMessenger *, FlTextureRegistrar *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

(flet:5615): GLib-GObject-CRITICAL **: 14:04:51.080: g_object_ref: assertion 'G_IS_OBJECT (object)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlBinaryMessenger *fl_plugin_registrar_get_messenger(FlPluginRegistrar *): assertion 'FL_IS_PLUGIN_REGISTRAR(self)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: FlMethodChannel *fl_method_channel_new(FlBinaryMessenger *, const gchar *, FlMethodCodec *): assertion 'FL_IS_BINARY_MESSENGER(messenger)' failed

** (flet:5615): CRITICAL **: 14:04:51.080: void fl_method_channel_set_method_call_handler(FlMethodChannel *, FlMethodChannelMethodCallHandler, gpointer, GDestroyNotify): assertion 'FL_IS_METHOD_CHANNEL(self)' failed
save

Operating System

Linux

Operating system details

ubuntu 24 / flutter Flutter 3.22.2

Flet version

Name: flet Version: 0.23.0 Summary: Flet for Python - easily build interactive multi-platform apps in Python Home-page: Author: Appveyor Systems Inc. Author-email: [email protected] License: Apache-2.0 Location: /home/vox/.local/lib/python3.10/site-packages Requires: cookiecutter, fastapi, flet-runtime, packaging, qrcode, uvicorn, watchdog Required-by:

Regression

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

Suggestions

No response

Additional details

Flutter 3.22.2 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 761747bfc5 (2 weeks ago) • 2024-06-05 22:15:13 +0200
Engine • revision edd8546116
Tools • Dart 3.4.3 • DevTools 2.34.3
@ndonkoHenri
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ndonkoHenri commented Jun 19, 2024 •
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Related discussions:

@logololo
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hi ,

in my opinion ,the problem is not related to Flutter, not directly.
here, it's FLET 0.23 and more precisely it's the change in flet Runtime from version 0.22.1 to version 0.23.
so , making corrections to Flutter will not solve the problem,

it's my opinion

@misterhackerman
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misterhackerman commented Jun 19, 2024 •
edited
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it's a bug or something with version 0.23. meanwhile u can pip install flet==0.22.1

@ndonkoHenri
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ndonkoHenri commented Jun 19, 2024 •
edited
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in my opinion ,the problem is not related to Flutter, not directly.
here, it's FLET 0.23 and more precisely it's the change in flet Runtime from version 0.22.1 to version 0.23.
so , making corrections to Flutter will not solve the problem,

The thing is Flet 0.22.1 was built back then against Flutter 3.19.6 while this new 0.23.0 release is built against Flutter 3.22.2.
That's why I think it's the cause of this issue.
Also, error messages in flutter/flutter#144873 look like those you received.

@FeodorFitsner
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But does the app work with those assertions or it crashes?

@logololo
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I am not an expert in FLET but I like it a lot and I use it more and more, I dont know if the transition to Flutter 3.22.2 was an absolute necessity to evolve FLET (and I think not) but in in the present case there is no solution to this Bug because even if I correct this bug in my machine and in my package (FLET 0.23) the bug will reappear during the packaging of the application or during the execution of the application in an another machine.
to be more precise, the bug is related to Flutter 3.22 which is the basis of flet 0.23 so two solutions are possible:

  • use an earlier version of flutter 3.19 or 3.20 i version for an update of FLET 0.23.1 (the most intelligent solution)

Or

  • wait for the official correction in a future version of Flutter (it may take a long time) which will be very unpleasant for FLET.

@FeodorFitsner: at my level of 'skill' I think it's not going to work, and even if I delve deeper into correcting the code of Flet 0.23 (or on my_application.cc), at best it will only work on my machine

It's just my opinion and my analysis

@FeodorFitsner
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Does the app start with the assertions shown or crash?

@logololo
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@FeodorFitsner : no , it crash

@FeodorFitsner
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I can reproduce the bug on my install of Ubuntu 22.04 (ARM) and looks like I'm going to have a fix for that...

@FeodorFitsner FeodorFitsner self-assigned this Jun 19, 2024
@FeodorFitsner FeodorFitsner added the bug Something isn't working label Jun 19, 2024
FeodorFitsner added a commit that referenced this issue Jun 19, 2024
@FeodorFitsner
Fix Flet 0.23 crash on Ubuntu 22.04
4e6a68d 
Fix #3490
@FeodorFitsner FeodorFitsner mentioned this issue Jun 19, 2024
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@FeodorFitsner
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Flet 0.23.1 is out with the fix for Linux. Please give it another try and let me know.

@logololo
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It works like a charm :)

thank you for your work

zrr1999 pushed a commit to zrr1999/flet that referenced this issue Jul 17, 2024
@FeodorFitsner @zrr1999
Fix Flet 0.23 crash on Ubuntu 22.04 (flet-dev#3495)
4ca7c42 
Fix flet-dev#3490
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Fix Flet 0.23 crash on Ubuntu 22.04 flet-dev/flet
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@FeodorFitsner @ndonkoHenri @misterhackerman @logololo