cd android; ./gradlew assembleRelease --stacktrace

flutter clean

flutter pub cache repair

flutter pub upgrade --major-versions

flutter build apk --release

settings.gradle plugins版本更新

pluginManagement {
    def flutterSdkPath = {
        def properties = new Properties()
        file("local.properties").withInputStream { properties.load(it) }
        def flutterSdkPath = properties.getProperty("flutter.sdk")
        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
        return flutterSdkPath
    }()

    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")

    repositories {
        maven { setUrl("https://maven.aliyun.com/repository/central") }
        maven { setUrl("https://maven.aliyun.com/repository/jcenter") }
        maven { setUrl("https://maven.aliyun.com/repository/google") }
        maven { setUrl("https://maven.aliyun.com/repository/gradle-plugin") }
        maven { setUrl("https://maven.aliyun.com/repository/public") }
        maven { setUrl("https://jitpack.io") }
        google()
        mavenCentral()
        gradlePluginPortal()
    }
}

plugins {
    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
    id("com.android.application") version "8.11.1" apply false
    id("org.jetbrains.kotlin.android") version "2.2.20" apply false
}

include ":app"

kotlin更新到2.1

buildscript {
    ext.kotlin_version = '2.1.0'
    repositories {
        maven { url 'https://mirrors.cloud.tencent.com/nexus/repository/google' }
        maven { url 'https://mirrors.cloud.tencent.com/nexus/repository/jcenter' }
        maven { url = uri("https://mirrors.cloud.tencent.com/nexus/repository/public/") }
        maven { url = uri("https://mirrors.cloud.tencent.com/nexus/repository/central") }
        maven { url 'https://mirrors.cloud.tencent.com/nexus/nexus/content/groups/public' }
        google()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:8.13.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}
 
allprojects {
   repositories {
        maven { url "https://mirrors.cloud.tencent.com/nexus/repository/maven-public" }
        maven { url "https://mirrors.cloud.tencent.com/nexus/repository/central" }
        maven { url "https://mirrors.cloud.tencent.com/nexus/repository/gradle-plugin" }
        maven { url "https://mirrors.cloud.tencent.com/nexus/repository/apache-snapshots" }
        google()
        mavenCentral()
    }
}

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

tasks.register("clean", Delete) {
    delete rootProject.buildDir
}
tasks.withType(JavaCompile) {
    options.encoding = "UTF-8"
}

不升级包会带来的报错：

An exception occurred applying plugin request [id: 'dev.flutter.flutter-plugin-loader', version: '1.0.0']

Your project's Android Gradle Plugin version (Android Gradle Plugin version 8.1.0) is lower than Flutter's minimum supported version of Android Gradle Plugin version 8.1.1.