错误信息 Access to the path "Library\UnityAssemblies\UnityEngine.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
Unity3D "Library\UnityAssemblies\UnityEngine.xml" is denied错误解决方法
原文：http://www.cnblogs.com/townsend/p/4142531.html