[Flutter]What to do if you can’t build with the error “Product Flavor names cannot collide with BuildType names” when building with Flutter’s Android app using Flavor


What to do if you can't build with the error "Product Flavor names cannot collide with BuildType names" when building with Flutter's Android app using Flavor

When I implemented a mobile application with Flutter and tried to perform branch processing for each Configuration called in iOS, I was able to build it on iOS, but I got an error like the title when building Android. So I will leave a memorandum of the cause and the solution.
I used flutter_flavorizr to set Flavor, and initially set the flavor called debug / release.

Reproduction environment

- Flutter (Channel stable, 2.2.3, on macOS 11.4 20F71 darwin-x64, locale
- Android toolchain - develop for Android devices (Android SDK version
- Xcode - develop for iOS and macOS(version 13.2.1)
- Android Studio (version 4.2)
- VS Code (version 1.63.2)

I couldn't set the debug / release to Flavor name!

I wrote the answer in the title, but in the case of Android, the flavor names debug / release are used as a reserved word.
I hadn't done much Android development, and I was able to build it on iOS without any problems, so I didn't know the cause at all at first, but I was finally able to find the cause while investigating.
Eventually, I changed the flavor name in {ProjectName} /android/app/build.gradle to develop / production.

I usually do iOS native development, and Flutter development is done as a sub, so I understand the rules and manners of iOS development to some extent, but I did not know the rules and manners of Android development at all, so again I was reminded that I can write code (only) with Flutter ≠ I can develop Android and iOS apps.
If we want to continue developing Flutter for Android, I think we need to improve not only our pure knowledge of Flutter but also our knowledge and know-how of Android development.




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