Android studio 编译的时候gc overhead limit exceeded

Question

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.

可是在项目的gradle.properties文件中我已经修改了

Default value: -Xmx10248m -XX:MaxPermSize=512m

org.gradle.jvmargs=-Xmx4g -XX:MaxPermSize=1024m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8

在app的build.gradle文件中按网上的加入了
dexOptions {
preDexLibraries true
javaMaxHeapSize "3g"
incremental true
dexInProcess = true
}
为什么起不到作用
Android studio版本2.2 Gradle版本gradle-2.14.1-all.zip

Answer 1

建议增大一倍就好了，当然 还需要根据你的电脑的配置：
Default value: -Xmx2048m -XX:MaxPermSize=1024m
org.gradle.jvmargs=-Xmx4g