现象：

FAILURE: Build failed with an exception.
 
* What went wrong:
java.io.IOException: 设备未就绪。

FAILURE: Build failed with an exception.
      
* What went wrong:
java.io.IOException: The device is not ready

原因：磁盘只读导致的（比如D盘是光盘）
解决方案：使得D盘可写或没有D盘，例如删除D盘的光驱或重命名D盘