java8 update

build.gradle

@@ -8,7 +8,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.1.2'
-        classpath 'me.tatarka:gradle-retrolambda:3.2.5'
+        //classpath 'me.tatarka:gradle-retrolambda:3.2.5'
     }
 }
 

gradle.properties

@@ -15,5 +15,4 @@ org.gradle.jvmargs=-Xmx1536m
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
-#android.useDeprecatedNdk=true
-android.enableAapt2=false
\ No newline at end of file
+#android.useDeprecatedNdk=true
\ No newline at end of file

mobile/build.gradle

 apply plugin: 'com.android.application'
-apply plugin: 'me.tatarka.retrolambda'
+//apply plugin: 'me.tatarka.retrolambda'
 
 android {
     compileSdkVersion rootProject.ext.compileSdkVersion