Unity3D "LibraryUnityAssembliesUnityEngine.xml" is denied错误解决方法

错误信息 Access to the path "LibraryUnityAssembliesUnityEngine.xml" is denied

无法修改改文件

Unity版本：4.6

解决方法：关闭Visual studio 2013

http://answers.unity3d.com/questions/802473/unity-remote-4-2.html