CODEWITHSUNDEEP
androidflutterbuildapkandroid-app-bundle
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Reputation: 311

Flutter Android build output is wrong

I have an app that I upgraded to build with Flutter 2. I'm still to do the null-safety stuff, but one step at a time.

When I do builds (both release and debug) the apk's and aab's get output to the wrong location and (in the case of aab's) this causes flutter to throw up at the end.

In this screenshot you will see the output gets generated to the android/app/build folder, this is not correct

build folder in android

In the case of building apk's it also generates it to the build/app/outputs folder which is better but still not 100% as it should be build/app/outputs/apk/nonprod/release/app-nonprod-release.apk

build folder in root

So my app has two flavors [ prod | nonprod ] and I do builds for aab's and apk's on both release and debug builds.

here is also the output of al 4 builds (all on the nonprod flavor) enter image description here

Some gradle info

    flavorDimensions "environment"

    productFlavors {
        prod {
            dimension "environment"
        }
        nonprod {
            dimension "environment"
            versionNameSuffix "-test"
            applicationIdSuffix ".test"
        }
    }

So how do I solve this to generate the artefacts to the correct folder

build/app/outputs/apk/{flavor}/{buildType}/app-{flavor}-{buildType}.apk

and

build/app/outputs/bundle/{flavor}{buildType}/app-{flavor}-{buildType}.aab

and not fail completely on appbundle's

Thank you in advance.

Upvotes: 2

Views: 1707

Answers (1)

fstof
fstof

Reputation: 311

So as part of my migration to Flutter 2 I made a mistake.

in android/build.gradle where the subprojects are defined I tried being clever and combined them into a single subprojects block. This caused the problem.

It's important that if you currently have two separate blocks, they are kept separate, like so

subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}

subprojects {
    project.evaluationDependsOn(':app')
}

When generating a new flutter project it will in fact be generated with a single block.

subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
    project.evaluationDependsOn(':app')
}

Don't try to use that in an older one.

Credit to this answer https://stackoverflow.com/a/63414006/2181352

Upvotes: 3

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