每次我运行我的应用程序时都会收到这个 Gradle 错误。错误是:

To run dex in process, the Gradle daemon needs a larger heap. It currently has approximately 910 MB.

For faster builds, increase the maximum heap size for the Gradle daemon to more than 2048 MB.

To do this set org.gradle.jvmargs=-Xmx2048M in the project gradle.properties. For more information see https://docs.gradle.org/current/userguide/build_environment.html

这是我的 build.gradle (Module:app) 文件:

apply plugin: 'com.android.application'

    android {
        compileSdkVersion 23
        buildToolsVersion "23.0.3"

        defaultConfig {
            applicationId "mobileapp.tech2dsk"
            minSdkVersion 15
            targetSdkVersion 23
            versionCode 1
            versionName "1.0"
        }
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            }
        }
    }

    dependencies {
        compile fileTree(dir: 'libs', include: ['*.jar'])
        testCompile 'junit:junit:4.12'
        compile 'com.android.support:appcompat-v7:23.3.0'
        compile 'com.android.support:design:23.3.0'
    }

这是我的 build.gradle(Project) 文件:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

这是我的 gradle.properties 文件:

# 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: -Xmx10248m -XX:MaxPermSize=256m
# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -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

最佳答案

2017 年 6 月 25 日更新

在 Google IO 2017 上，有一些关于这个主题的更新。不建议在dexOptions上设置flag，如果有类似next的，可以删除。

dexOptions {
   javaMaxHeapSize "2g"
}

• 来源:Speeding Up Your Android Gradle Builds

原答案:

Android Studio 2.1 启用了与 Gradle 共享 VM 的 Dex In Process，以缩短构建时间。因此，有必要增加 Gradle 守护程序的大小以合并这些 Dex 进程。

至少需要 2 个内存，但如果你负担得起的话，你可以尝试 3 个。

gradle.properties.

org.gradle.jvmargs=-Xmx3072m

默认情况下，Java 最大堆大小为 1 gig，但如果您在 build.gradle 文件中对其进行了修改...

build.gradle(应用程序)

dexOptions {
   javaMaxHeapSize "2g"
}

...您必须相应地调整 Gradle 守护程序的大小(必须更大以适应堆)。

• 资源

  1. Official blog post by Reto Meier
  2. Official Video in Android Developers
  3. DexOptions docs.

注意事项:

• 请注意，上述数字因机器而异。

关于android - 要在进程中运行 dex，Gradle 守护进程需要更大的堆。它目前大约有 910 MB，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37090135/