upgrade gradle

android/app/build.gradle

@@ -1,3 +1,14 @@
+plugins {
+    id "com.android.application"
+    // START: FlutterFire Configuration
+    id 'com.google.gms.google-services'
+    // END: FlutterFire Configuration
+    id "kotlin-android"
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -21,8 +32,6 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 def keystoreProperties = new Properties()
 def keystorePropertiesFile = rootProject.file('key.properties')
@@ -31,12 +40,24 @@ if (keystorePropertiesFile.exists()) {
 }
 
 android {
+    namespace = "com.mokkon.fcs.fcs"
+    compileSdkVersion 34
+    ndkVersion = "27.0.12077973"
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+        coreLibraryDesugaringEnabled true
+    }
+
+    kotlinOptions {
+        jvmTarget = 17
+    }
+    
     lintOptions {
         checkReleaseBuilds false
     }
 
-    compileSdkVersion 34
-
     defaultConfig {
         minSdkVersion 23
         targetSdkVersion 34
@@ -92,8 +113,6 @@ flutter {
 }
 
 dependencies {
-  implementation 'com.android.support:multidex:1.0.3'
-  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-}
-
-apply plugin: 'com.google.gms.google-services'
+  implementation "androidx.multidex:multidex:2.0.1"
+  coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'
+}