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Flutter flutter_launcher_icons error: pub finished with exit code 255

I want to create my launcher icon for flutter. My config (pubspec.yaml) looks the following.

...
  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^1.0.2
  flutter_spinkit: ^5.1.0
  url_launcher: ^6.0.17
  http: ^0.13.4
  intl: ^0.17.0
  flutter_launcher_icons: ^0.9.2

flutter_icons:
  android: true
  ios: true
  image_path: "assets/logo_blue.png"
...

I installed the flutter_launcher_icon via the console (flutter pub add flutter_launcher_icons). Afterwards I added the config (see above) to the pubspec.yaml file and entered the following two commands in the console:

flutter pub get
flutter pub run flutter_launcher_icons:main

as described in the documentation (https://pub.dev/packages/flutter_launcher_icons). But after the second command I get the following error message and pub finished with exit code 255.

  ════════════════════════════════════════════
     FLUTTER LAUNCHER ICONS (v0.9.1)
  ════════════════════════════════════════════


✓ Successfully generated launcher icons
Unhandled exception:
FormatException: Invalid number (at character 1)

^

#0      int._handleFormatError (dart:core-patch/integers_patch.dart:129:7)
#1      int.parse (dart:core-patch/integers_patch.dart:55:14)
#2      minSdk (package:flutter_launcher_icons/android.dart:309:18)
#3      createIconsFromConfig (package:flutter_launcher_icons/main.dart:94:47)
#4      createIconsFromArguments (package:flutter_launcher_icons/main.dart:60:7)
#5      main (file:///C:/Users/chris/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_launcher_icons-0.9.2/bin/main.dart:6:26)
#6      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:295:32)
#7      _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)
pub finished with exit code 255

What do I do wrong?

Thanks!

Solution

  • changing the minSdkVersion Number didn't work for me and it seems there is a bug in flutter_launcher_icons gitanswer. If I remove android:true from the config it created the iOS icon successfully.

    I created and replaced the icons for android now manually. If you want to do that go in your project to projectname/android/app/src/res and replace the *png files in the folders starting with mipmap...

    Br, Chris