So much!
1.Our projects developed with myeclipse and using svn manage source code.I check out project from our svn repo,and change .project and .classpaht .settings/.... to the STS format.
2.I try to use tomcat6 deploy web projects(more than 2 at same time),and they depends each other.I can not deploy success.We do not use maven.
3.I try to deploy only one web project,It success,but i can not figure out why more than 2 projects deploy at same time fail.

4.I try to replace tomcat with tcServer,fail too.

I upload some capture to clear my quesion.
1.png2.jpg3.png