Android Studio Gradle Build takes more than 5 minutes

Enable “Dex In Process” for faster app builds (for Android Studio 2.1).

increase the amount of memory allocated to the Gradle Daemon VM by 1
Gb, to a minimum of 2 Gb, using the org.gradle.jvmargs property:


Read about it here: Faster Android Studio Builds with Dex In Process


Other solutions here have not helped me yet. I am seeing builds lasting 30+ minutes only to end with Error:Out of memory: GC overhead limit exceeded. But I have made slight progress the past few days.

Note: I do not believe this is a solution to the problem, just a workaround until Jack works out the kinks

I added the following to my build gradle:

android {
  defaultConfig {
    jackOptions {
            enabled true
            additionalParameters('jack.incremental': 'true')

    compileOptions {
        incremental true
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8

    dexOptions {
        javaMaxHeapSize '4096m'


For some reason, adding

org.gradle.jvmargs=-Xmx4g -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 

to my made no difference. I had to add it in the dexOptions.

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