Update: AGP -> 3.0.1, Build Tools -> 27.0.3, target SDK -> 27, Gradle…

… -> 4.1

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.6'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.4.1'
     }
@@ -15,4 +15,4 @@ allprojects {
     repositories {
         jcenter()
     }
-}
+}

fancybuttons_library/build.gradle

@@ -1,12 +1,13 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.2'
+    compileSdkVersion Integer.parseInt(project.ANDROID_BUILD_SDK_VERSION)
+    buildToolsVersion project.ANDROID_BUILD_TOOLS_VERSION
+
 
     defaultConfig {
-        minSdkVersion 8
-        targetSdkVersion 25
+        minSdkVersion Integer.parseInt(project.ANDROID_BUILD_MIN_SDK_VERSION)
+        targetSdkVersion project.ANDROID_BUILD_TARGET_SDK_VERSION
         versionCode Integer.parseInt(VERSION_CODE)
         versionName VERSION_NAME
     }

gradle.properties

@@ -1,6 +1,6 @@
 VERSION_CODE=25
 ANDROID_BUILD_MIN_SDK_VERSION=8
-ANDROID_BUILD_TARGET_SDK_VERSION=25
-ANDROID_BUILD_TOOLS_VERSION=25.0.1
-ANDROID_BUILD_SDK_VERSION=25
+ANDROID_BUILD_TARGET_SDK_VERSION=27
+ANDROID_BUILD_TOOLS_VERSION=27.0.3
+ANDROID_BUILD_SDK_VERSION=27
 VERSION_NAME=1.8.4

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sun Feb 07 12:19:25 WET 2016
+#Sun Feb 11 09:10:35 WIB 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https://services.gradle.org/distributions/gradle-3.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

samples/build.gradle

@@ -16,7 +16,6 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
         }
     }
-    buildToolsVersion '23.0.3'
 }
 
 dependencies {