Un tas plus grand pour le démon Gradle est recommandé pour faire tourner le jack

Question

Im assez nouveau pour gradle. J'ai actuellement essayé de mettre à niveau une application Android d'étude à Java 1.8 dans les paramètres de gradle dans lequel il m'a incité à activer jackOptions à «vrai» afin que je puisse utiliser des expressions lambda dans mon application.

Voici mes options actuelles de Gradle:

build.gradle

apply plugin: 'com.android.application' 

android { 
    compileSdkVersion 24 
    buildToolsVersion "24.0.1" 

    dexOptions{ 
     javaMaxHeapSize "4g" 
    } 

    defaultConfig { 
     applicationId "com.bmw.www.team10" 
     minSdkVersion 23 
     targetSdkVersion 24 
     versionCode 1 
     versionName "1.0" 
     multiDexEnabled true 

     jackOptions{ 
      enabled true 
     } 
    } 

    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 

    compileOptions { 
     sourceCompatibility JavaVersion.VERSION_1_8 
     targetCompatibility JavaVersion.VERSION_1_8 
    } 
} 

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    testCompile 'junit:junit:4.12' 
    compile 'com.android.support:multidex:1.0.1' 
    compile 'com.android.support:appcompat-v7:24.2.1' 
    compile 'com.android.support:design:24.2.1' 
    compile 'com.google.android.gms:play-services-ads:9.6.1' 
    compile 'com.android.support:support-v4:24.2.1' 
    compile 'com.google.android.gms:play-services:9.6.1' 
    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha9' 
    compile 'com.android.support:cardview-v7:24.2.1' 
} 

gradle.properties

# Project-wide Gradle settings. 

# IDE (e.g. Android Studio) users: 
# Gradle settings configured through the IDE *will override* 
# any settings specified in this file. 

# For more details on how to configure your build environment visit 
# http://www.gradle.org/docs/current/userguide/build_environment.html 

# Specifies the JVM arguments used for the daemon process. 
# The setting is particularly useful for tweaking memory settings. 
# Default value: -Xmx2048m -XX:MaxPermSize=2048m 
# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 

# When configured, Gradle will run in incubating parallel mode. 
# 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 

Quand j'essaie de construire mon projet, ce boucles pendant 10 minutes dans la gradle console

A larger heap for the Gradle daemon is recommended for running jack. 

It currently has 1024 MB. 
For faster builds, increase the maximum heap size for the Gradle daemon to at least 1536 MB. 
To do this set org.gradle.jvmargs=-Xmx1536M in the project gradle.properties. 
For more information see https://docs.gradle.org/current/userguide/build_environment.html 

Answer 1

décommentez cette ligne gradle.properties:

# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 

à

org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8