I had started using this package as other ones are not building with iOS. Now this one works for iOS, but to my dismay won't even compile properly in Android.
Should compile and run in an Android phone.
D8: Program type already present: android.support.v4.os.ResultReceiver$MyResultReceiver
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/2.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/3.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/4.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/5.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/6.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/7.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/8.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/9.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/10.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/11.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/12.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/13.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/14.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/15.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/16.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/17.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/18.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/19.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/20.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/21.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/22.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/23.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/24.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/25.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/26.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/27.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/28.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/29.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/30.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/31.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/32.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/33.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/34.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/35.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/36.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/37.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/38.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/39.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/40.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/41.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/42.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/43.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/44.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/45.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/46.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/47.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/48.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/49.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/50.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/51.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/52.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/53.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/54.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/55.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/56.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/57.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/58.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/59.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/60.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/61.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/62.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/63.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/64.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/65.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/66.jar, /Users/apple/AndroidStudioProjects/cityjan-flutter-project/build/app/intermediates/transforms/dexBuilder/debug/67.jar
Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.
Program type already present: android.support.v4.os.ResultReceiver$MyResultReceiver
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 2m 38s
Finished with error: Gradle task assembleDebug failed with exit code 1