'How can I run release build of my Flutter app on Simulator

I need to take screenshots of my Flutter application across various devices. Since I do not have a variety of physical devices, I need to use the Simulator. However, I cannot figure out how to run my app in non-debug mode -- I always see the "Debug" banner in the top right corner. How can I run a Release build in the iOS Simulator?

When I try: flutter run --release, it says, "Release mode is not supported for emulators."

When I try: flutter install, it says:

[ +108 ms] An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
                    Failed to install the requested application
                    An application bundle was not found at the provided path.
                    Provide a valid path to the desired application bundle.
[  +12 ms] "flutter install" took 4,601ms.
Install failed

Alternatively, can I run a debug build without showing the Debug banner?

flutter ios-simulator

Solution 1:^[1]

You won't be able to run release mode on simulator as it only runs on actual device.

However you can remove the debug banner by passing debugShowCheckedModeBanner:false in your MaterialApp()

MaterialApp(
  debugShowCheckedModeBanner:false,
  home:...
)

Solution 2:^[2]

The command flutter run --release compiles to release mode.

To remove "debug banner" you can use debugShowCheckedModeBanner property of MaterialApp() widget. If you set this property to false , banner will be disappeared.

class MyApp extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
        return MaterialApp(
            home: HomePage(),
            debugShowCheckedModeBanner: false,
        );
    }
}

Solution 3:^[3]

No, you can't run release build on Emulator. you need a actual device to run release build and ios devices won't support release build.

To run release build on android devices

flutter run --release

To get release build on your storage

flutter build apk --release

This will generate a release build, If you want to get a normal build run below command

flutter run

If you want to get ios build you should run this command ( you can't run this command on Windows and LINUX computers, You need a MAC system for get ios build )

flutter build ios

I hope this will help someone who new to flutter

Solution 4:^[4]

The command flutter run --release compiles to release mode.

check the official doc for Flutter's build modes

Solution 5:^[5]

Running flutter run --release worked for me even on the emulator and also I received FCM notification.

Solution 6:^[6]

run flutter clean
enable android:debuggable="true" in manifest
flutter build --release

it works for me in emulator pixel 3 and real device

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Shubham Gupta
Solution 2	progNewbie
Solution 3	Anandh Krishnan
Solution 4	yathavan
Solution 5	Danish Khan
Solution 6	Ahmed Ashour

'How can I run release build of my Flutter app on Simulator

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

Solution 4:[4]

Solution 5:[5]

Solution 6:[6]