Set minSdkVersion to 21

android/build.gradle

@@ -34,11 +34,10 @@ android {
   compileSdkVersion getExtOrIntegerDefault('compileSdkVersion')
   buildToolsVersion getExtOrDefault('buildToolsVersion')
   defaultConfig {
-    minSdkVersion 16
+    minSdkVersion 21
     targetSdkVersion getExtOrIntegerDefault('targetSdkVersion')
     versionCode 1
     versionName "1.0"
-
   }
 
   buildTypes {

example/android/build.gradle

@@ -3,10 +3,10 @@
 buildscript {
     ext {
         RNNKotlinVersion = "1.3.61"
-        buildToolsVersion = "29.0.2"
+        buildToolsVersion = "30.0.0"
         minSdkVersion = 21
-        compileSdkVersion = 29
-        targetSdkVersion = 29
+        compileSdkVersion = 30
+        targetSdkVersion = 30
     }
     repositories {
         google()
@@ -14,7 +14,7 @@ buildscript {
     }
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.61"
-        classpath("com.android.tools.build:gradle:3.5.3")
+        classpath("com.android.tools.build:gradle:4.1.2")
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

example/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists