Could not set the project description for 'hotelseqbid.ws' because the project d

用eclipse 对项目进行Maven>Update Project...是报如下错误：
Could not set the project description for 'hotelseqbid.ws' because the project description file (.project) is out of sync with the file system.

先按这里的解决http://stackoverflow.com/questions/30747839/project-description-file-project-is-out-of-sync-with-the-file-system
如果解决不了，按照下面的解决：
先备份有错误的项目中的.project文件，然后删除它，然后Project>Clean 该项目，再进行Maven>Update Project... 操作即可。