Error:Error: Could not create the Java Error: A fatal exception has occurred. Program will exit.

最近使用Android Studio开发Android应用时，引用别人的工程，运行报错。出错信息如下：

Error:Error: Could not create the Java Virtual Machine.

Error:Error: A fatal exception has occurred. Program will exit.

Error:Invalid maximum heap size: -Xmx4g

Error:The specified size exceeds the maximum representable size.

Error:Execution failed for task ':app:transformClassesWithDexForWandoujiaDebug'.

> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: java.lang.UnsupportedOperationException

于是各种百度，各种Google，改jvm参数，改studio参数，

改

org.gradle.jvmargs=-Xmx1024m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8

改虚拟内存

还是一筹莫展。

后来发现Error:Invalid maximum heap size: -Xmx4g这句话，于是全局搜索4g于是在app/build.gradle中发现这句

dexOptions {
jumboMode = true
javaMaxHeapSize "4g"
}

于是果断把4g改为1g完美运行!!!!