fix msg

android/app/build.gradle

@@ -24,26 +24,17 @@ if (flutterVersionName == null) {
 apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
-def keystoreProperties = new Properties()
-def keystorePropertiesFile = rootProject.file('key.properties')
-if (keystorePropertiesFile.exists()) {
-    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
-}
-
 android {
-    compileSdkVersion 28
-
-    lintOptions {
-        disable 'InvalidPackage'
-    }
+    compileSdkVersion 30
 
     defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.mokkon.fcs.fcs"
         minSdkVersion 21
-        targetSdkVersion 28
+        targetSdkVersion 30
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         multiDexEnabled true
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
 
 
@@ -92,17 +83,8 @@ flutter {
     source '../..'
 }
 
-apply plugin: 'kotlin-android'
-
 dependencies {
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-    implementation 'com.android.support:multidex:1.0.3'
-    implementation 'com.google.firebase:firebase-analytics:17.5.0'
-    implementation 'com.google.firebase:firebase-auth:19.0.0'
-    implementation 'com.google.firebase:firebase-messaging:20.1.0'
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+  implementation 'com.android.support:multidex:1.0.3'
 }
 
 apply plugin: 'com.google.gms.google-services'