Flutter – Kotlin Version Mismatch: Dependencies Compiled with Kotlin 1.8.0, Expected 1.6.0 in Android Project

After creating a screen to display the user’s location on the map, I get the following errors:

e: /path/to/project/.gradle/caches/transforms-3/XXXXXX/transformed/fragment-1.7.1-api.jar!/META-INF/fragment_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.

e: /path/to/project/.gradle/caches/transforms-3/XXXXXX/transformed/jetified-activity-1.8.1-api.jar!/META-INF/activity_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.

e: /path/to/project/.gradle/caches/transforms-3/XXXXXX/transformed/jetified-lifecycle-livedata-core-ktx-2.7.0-api.jar!/META-INF/lifecycle-livedata-core-ktx_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.

e: /path/to/project/.gradle/caches/transforms-3/XXXXXX/transformed/lifecycle-livedata-2.7.0-api.jar!/META-INF/lifecycle-livedata_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.

e: /path/to/project/.gradle/caches/transforms-3/XXXXXX/transformed/lifecycle-viewmodel-2.7.0-api.jar!/META-INF/lifecycle-viewmodel_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.

e: /path/to/project/.gradle/caches/transforms-3/XXXXXX/transformed/core-ktx-1.13.1-api.jar!/META-INF/core-ktx_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.

Android/build.gradle

buildscript {
    ext.kotlin_version = '1.9.0'
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:8.0.2"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

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 "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
}

android {
    namespace = "com.example.projectexample"
    compileSdk = 34

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

    kotlinOptions {
        jvmTarget = "1.8"
    }

    defaultConfig {
        applicationId = "com.example.projectexample"
        minSdk = 21
        targetSdk = 34
        versionCode = 1
        versionName = "1.0.0"
    }

    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            signingConfig signingConfigs.debug
        }

        debug {
            minifyEnabled false
            shrinkResources false
        }
    }
}

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

dependencies {
    implementation "androidx.core:core-ktx:1.13.0"
    implementation "androidx.fragment:fragment-ktx:1.7.1"
    implementation "androidx.lifecycle:lifecycle-livedata-core-ktx:2.7.0"
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.1"
}

gradle-wrapper.properties:

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https://services.gradle.org/distributions/gradle-8.1.1-all.zip

Settings.gradle:

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 {
        google()
        mavenCentral()
        gradlePluginPortal()
    }
}

plugins {
    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version "7.3.0" apply false
    id "org.jetbrains.kotlin.android" version "1.9.0" apply false
}

include ":app"