Android studio Error:Unable to start the daemon process

在更新了android studio 2.2后，突然出现了这种错误：

Android studio Error:Unable to start the daemon process

Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the user guide chapter on the daemon at http://gradle.org/docs/1.8/userguide/gradle_daemon.html
Please read below process output to find out more:

Google了下，发现系统中没有对android studio的默认配置。而android studio项目是通过.gradle进行配置的，解决办法：

直接打开工程文件的gradle.properties，修改里面的这一项：设定为512m或者其他值

org.gradle.jvmargs=-Xmx512m