I am new to flutter development and so far I have been testing the android app in debug mode. I want to release the app to share with friends and family. However, I keep getting errors when I try to build the apk (release).

To be honest, I do not fully understand the build.gradle files; hence I am reaching out here for any help, thank you.

I am on Android 14 and I intend to only support Android 14+.

I have downloaded the SDK’s for API level 34 and 35 from Android Studio.

My app is entirely on Flutter’s dart.

This is the error while building the apk (release):

Note: Recompile with -Xlint:deprecation for details.
Font asset "MaterialIcons-Regular.otf" was tree-shaken, reducing it from 1645184 to 4212 bytes (99.7% reduction). Tree-shaking can be disabled by providing the --no-tree-shake-icons flag when building your app.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processReleaseResources'.
> A failure occurred while executing com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask$TaskAction
   > Android resource linking failed
     aapt2 E 07-22 17:30:35 77990 77990 LoadedArsc.cpp:94] RES_TABLE_TYPE_TYPE entry offsets overlap actual entry data.
     aapt2 E 07-22 17:30:35 77990 77990 ApkAssets.cpp:149] Failed to load resources table in APK '/home/username/Android/Sdk/platforms/android-35/android.jar'.
     error: failed to load include path /home/username/Android/Sdk/platforms/android-35/android.jar.

android/build.gradle

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

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

tasks.register("clean", Delete) {
    delete rootProject.buildDir
}

android/app/build.gradle

plugins {
    id "com.android.application"
    id 'com.google.gms.google-services'
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
}

def localProperties = new Properties()
def localPropertiesFile = rootProject.file("local.properties")
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader("UTF-8") { reader ->
        localProperties.load(reader)
    }
}

android {
    namespace = "com.example.flutter_application_1"
    compileSdk = 35 // max SDK available today
    ndkVersion = flutter.ndkVersion

    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }

    defaultConfig {
        applicationId = "com.example.flutter_application_1"
        minSdk = 33
        targetSdk = 34
        versionCode = 1
        versionName = "1.0"
    }

    buildTypes {
        release {
            signingConfig = signingConfigs.debug
        }
    }
}

flutter {
    source = "../.."
}