update build gradle

android/app/build.gradle

@@ -3,7 +3,7 @@ apply from: '../prepare-robolectric.gradle'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "25"
+    buildToolsVersion "25.0.1"
 
     defaultConfig {
         minSdkVersion 16

android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.0'
+        classpath 'com.android.tools.build:gradle:2.2.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files