Flutter build apk

[Ehsan_Abedi]

To test the error in my flutter project, I created an empty flutter project in vscode and added backendless_sdk to pubspec.yaml.
When running “flutter build apk” in the terminal, error "Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details."is displayed.

Deleting “backpacker_sdk” no longer causes an error

[Inna_Shkolnaya]

Hi @Ehsan_Abedi

We will investigate this issue and respond as soon as possible.

Regards,
Inna

[Ehsan_Abedi]

thank you
my flutter information
flutter doctor -v
backendless_sdk: ^1.1.6

[Maksym_Khobotin]

Hi @Ehsan_Abedi

It’s a warning message. You can ignore it for now. I’ve also created the internal ticket BKNDLSS-21351 to investigate the cause of this hint.

Best Regards,
Maksym

[Ehsan_Abedi]

thank you
But I can’t ignore that, because when I create and run an APK, the app stops.
without backendless_sdk: ^1.1.6
The app runs without error on the phone.

But with backendless_sdk: ^1.1.6

[Maksym_Khobotin]

Don’t you forget to setup the Proguard config?
https://backendless.com/docs/flutter/setup.html#proguard-configuration

There is also a post about it:

Release app crash

Hi @Mohamed_Rashed, @Mohamed_Elgendy and @Andrew_Gadri-Akrong The release application crash was caused by the Android code optimizer (ProGuard or R8). The Flutter enables the optimization and obfuscation by default. There are two ways to solve this problem: disable optimizer or configure the optimizer config to don’t delete the necessary files. To disable the optimizer you can simply add the option minifyEnabled false to your android/app/build.gradle: android { buildTypes { rel…

Best Regards,
Maksym

[Ehsan_Abedi]

Thank you very much

[Maksym_Khobotin]

You are welcome! Happy coding with Backendless!

Regards,
Maksym