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flet-dev
Windows build fails
Description
Using the command flet build windows fails and returns this "error":
PS E:\projects\slidesgrabber> flet build windows
Creating Flutter bootstrap project...OK
Customizing app icons and splash images...OK
Generating app icons...OK
Packaging Python app...Running package command
Creating asset directory: C:\Users\edoar\AppData\Local\Temp\flet_flutter_build_CVSiTUVYwp\app
Copying Python app from E:\vscode_projects\slidesgrabber to C:\Users\edoar\AppData\Local\Temp\serious_python_temp2e039a58
Installing dependencies with pip command to C:\Users\edoar\AppData\Local\Temp\serious_python_temp2e039a58\__pypackages__
Extracting Python distributive from C:\Users\edoar\AppData\Local\Temp\cpython-3.11.6+20231002-x86_64-pc-windows-msvc-shared-install_only.tar.gz to C:\Users\edoar\AppData\Local\Temp\hostpython3.11_ee5dae7e
Compiling Python sources at C:\Users\edoar\AppData\Local\Temp\serious_python_temp2e039a58
Error building Flet app - see the log of failed command above.
The issue is that with the minimum reproducible example provided in the flet.dev docs, everything works just fine.
Flet version: 0.20.2
Operating system: windows 10
My requirements.txt file
flet
fitz
pytesseract
scipy
pyautogui
numpy
Have the similar situation, with my project. Flet version: 0.21.2 Operating system: windows 11
Compiling 'C:\\Users\\sa090\\AppData\\Local\\Temp\\serious_python_temp2a5dafec\\views\\zipparts_view.py'... Deleting Flutter bootstrap directory C:\Users\sa090\AppData\Local\Temp\flet_flutter_build_HrjhsnPRh2 Error building Flet app - see the log of failed command above.
Does anyone know how to resolve?
(.venv) PS C:\Users\nacho\qr-app> flet build windows .\flet-qr-app\
Creating Flutter bootstrap project from gh:flet-dev/flet-build-template with ref 0.22.1...OK
Customizing app icons and splash images...OK
Generating app icons...OK
Packaging Python app...Running package command
Creating asset directory: C:\Users\nacho\AppData\Local\Temp\flet_flutter_build_4XvQZTMX7c\app
Copying Python app from C:\Users\nacho\qr-app\flet-qr-app to C:\Users\nacho\AppData\Local\Temp\serious_python_temp351b0dfc
Installing dependencies with pip command to C:\Users\nacho\AppData\Local\Temp\serious_python_temp351b0dfc\__pypackages__
Extracting Python distributive from C:\Users\nacho\AppData\Local\Temp\cpython-3.11.6+20231002-x86_64-pc-windows-msvc-shared-install_only.tar.gz to C:\Users\nacho\AppData\Local\Temp\hostpython3.11_9a8206a7
Compiling Python sources at C:\Users\nacho\AppData\Local\Temp\serious_python_temp351b0dfc
Error building Flet app - see the log of failed command above.
I also got this error. Anyone knows?
(.venv) PS C:\Users\nacho\qr-app> flet build windows .\flet-qr-app\ Creating Flutter bootstrap project from gh:flet-dev/flet-build-template with ref 0.22.1...OK Customizing app icons and splash images...OK Generating app icons...OK Packaging Python app...Running package command Creating asset directory: C:\Users\nacho\AppData\Local\Temp\flet_flutter_build_4XvQZTMX7c\app Copying Python app from C:\Users\nacho\qr-app\flet-qr-app to C:\Users\nacho\AppData\Local\Temp\serious_python_temp351b0dfc Installing dependencies with pip command to C:\Users\nacho\AppData\Local\Temp\serious_python_temp351b0dfc\__pypackages__ Extracting Python distributive from C:\Users\nacho\AppData\Local\Temp\cpython-3.11.6+20231002-x86_64-pc-windows-msvc-shared-install_only.tar.gz to C:\Users\nacho\AppData\Local\Temp\hostpython3.11_9a8206a7 Compiling Python sources at C:\Users\nacho\AppData\Local\Temp\serious_python_temp351b0dfc Error building Flet app - see the log of failed command above.I also got this error. Anyone knows?
I try to update Python, than try to use different versions of Flet, also try to make simple project also get this error
Command "flet build apk --module-name"
I'm experiencing the same error "Error building Flet app - see the log of failed command above". The funny thing is that yesterday there was success and today there is failure.
Python Version 3.12.2 flet==0.22.0 flet-core==0.22.0 flet-runtime==0.22.0
The solution to my problem involved identifying the point of failure. The flet does not seem to make it easier to identify this type of failure. I had to do it line by line, command by command.
I identified the point of failure that caused the alert "Error building Flet app - see the log of failed command above". In a class that inherits from ft.View there were some print commands with f-string. The APK was generated successfully after removing these print commands.
Could this also be related to your problem?
I try to make app with simple code
import flet as ft import time def main(page: ft.Page): def handler(e): time.sleep(3) page.add(ft.Text("Handler clicked")) page.add( ft.ElevatedButton("Call handler", on_click=handler) ) ft.app(main)
