1.There are inconsistent line endings in the 'Assets/Scrips/HelloWorld.cs' script. Some are Mac OS X (UNIX) and some are Windows.
(1)添加高级保存选项
工具-》自定义-》命令-》菜单栏-》文件-》添加命令-》文件（类别）-》高级保存选项-》保存脚本（Windows LR）
2.Unity5 3D和2D工程SkyBox背景不一致
Window-》Lightning-》Sitting-》SkyBox Material
3.An assembly with the same name `XXXXX.XX' has already been imported.
删除Assets目录下的Library文件
4.Unity SpritePacker 图片没有被打包进图集
取消图片设置的Read/Write Enabel选项
5.使用WWW加载AssetBundle,提示Unsupported protocol
加载地址加上“file://”
