Android studio, gradleバージョン戻し（studio version : 3.0.1 , gradle version : 4.4.1）

ABVJE_Launcher_Android/build.gradle

@@ -18,7 +18,7 @@ dependencies {
 
 android {
     compileSdkVersion 21
-    buildToolsVersion '28.0.3'
+    buildToolsVersion '27.0.3'
 
     defaultConfig {
         minSdkVersion 23

ABVJE_Res_Default_Android/build.gradle

@@ -7,7 +7,7 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 21
-    buildToolsVersion '28.0.3'
+    buildToolsVersion '27.0.3'
 
     defaultConfig {
         minSdkVersion 15

ABVJE_UI_Android/build.gradle

@@ -27,7 +27,7 @@ dependencies {
 
 android {
   compileSdkVersion 26
-  buildToolsVersion '28.0.3'
+  buildToolsVersion '27.0.3'
 
   defaultConfig {
     minSdkVersion 15

build.gradle

@@ -6,7 +6,7 @@ buildscript {
     google()
   }
   dependencies {
-    classpath 'com.android.tools.build:gradle:3.3.1'
+    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
   }

gradle/wrapper/gradle-wrapper.properties

-#Tue Feb 19 13:41:26 JST 2019
+#Tue Feb 19 17:59:22 JST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-all.zip

xwalk_core_library/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 21
-    buildToolsVersion '28.0.3'
+    buildToolsVersion '27.0.3'
 
     defaultConfig {
         minSdkVersion 16