if some files are on a mounted disk: go to Settings | Notifications | File Watcher Messages and tune it.
多个磁盘下..项目放在系统盘下不会出现这个问题..
External file changes sync may be slow: Project files cannot be watched (are they under network mount?)
原文：http://www.cnblogs.com/zhepama/p/3534425.html
