update gradle config

app/build.gradle

 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '27.0.3'
+    compileSdkVersion 28
 
     defaultConfig {
         applicationId "com.example.app"
         minSdkVersion 21
-        targetSdkVersion 25
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

-#Mon Oct 29 15:19:59 CET 2018
+#Mon Jan 21 19:31:21 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip