将Android Studio和Android Studio SDK从1.5更新到2.1.2后，我在Android Studio中打开项目时收到错误异常。如：
ExceptionInInitializerError: null
NoClassDefFoundError: Could not initialize class com.android.sdklib.repositoryv2.targets.SystemImage
following are the issues after gradle building
当我尝试打开Android Studio SDK管理器时，它会冻结like this
