Update Gradle and dependencies versions

app/build.gradle

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion '26.0.1'
+    compileSdkVersion 27
+    buildToolsVersion '27.0.3'
 
     defaultConfig {
         applicationId "com.example.android.sunshine"
         minSdkVersion 14
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -28,21 +28,16 @@ android {
 
 // Versions number variables are defined in the module build.gradle file
 dependencies {
-    compile "com.android.support:appcompat-v7:$support_version"
-    compile "com.android.support:recyclerview-v7:$support_version"
-    compile "com.android.support:preference-v7:$support_version"
-    compile "com.android.support.constraint:constraint-layout:$constraint_layout_version"
-    compile "com.firebase:firebase-jobdispatcher:$firebase_jobdispatcher_version"
-    compile "android.arch.lifecycle:runtime:$arch_version"
-    compile "android.arch.lifecycle:extensions:$arch_version"
-    annotationProcessor "android.arch.lifecycle:compiler:$arch_version"
-    compile "android.arch.persistence.room:runtime:$arch_version"
-    annotationProcessor "android.arch.persistence.room:compiler:$arch_version"
+    implementation "com.android.support:appcompat-v7:$support_version"
+    implementation "com.android.support:recyclerview-v7:$support_version"
+    implementation "com.android.support:preference-v7:$support_version"
+    implementation "com.android.support.constraint:constraint-layout:$constraint_layout_version"
+    implementation "com.firebase:firebase-jobdispatcher:$firebase_jobdispatcher_version"
 
     // Instrumentation dependencies use androidTestCompile"
     // (as opposed to testCompile for local unit tests run in the JVM"
-    androidTestCompile "junit:junit:$junit_version"
-    androidTestCompile "com.android.support:support-annotations:$support_version"
-    androidTestCompile "com.android.support.test:runner:$support_test_version"
-    androidTestCompile "com.android.support.test:rules:$support_test_version"
+    androidTestImplementation "junit:junit:$junit_version"
+    androidTestImplementation "com.android.support:support-annotations:$support_version"
+    androidTestImplementation "com.android.support.test:runner:$support_test_version"
+    androidTestImplementation "com.android.support.test:rules:$support_test_version"
 }

build.gradle

@@ -6,16 +6,16 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0-beta2'
+        classpath 'com.android.tools.build:gradle:3.1.4'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
 }
 
 ext.arch_version = "1.0.0-alpha8"
-ext.support_version = "26.0.1"
-ext.constraint_layout_version = "1.1.0-beta1"
+ext.support_version = "27.1.1"
+ext.constraint_layout_version = "1.1.2"
 ext.firebase_jobdispatcher_version = "0.7.0"
 ext.junit_version = "4.12"
 ext.support_test_version = "1.0.0"
@@ -24,6 +24,7 @@ allprojects {
     repositories {
         jcenter()
         maven { url 'https://maven.google.com' }
+        google()
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-rc-1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip