Problem with spring beans schema

[zakhrim]

Hi everybody.
I am experiencing a problem that is very weird (to me, at least)

I'm building a Roo project with Spring data repository support.
When I try to add a dependency af a library of my own, in the file applicationContext-jpa.xml I get the error

Referenced file contains errors (jar:file:/home/stefano/.m2/repository/org/springframework/spring-beans/3.1.1.RELEASE/spring-beans-3.1.1.RELEASE.jar!/org/springframework/beans/factory/xml/spring-tool-3.1.xsd).

I thought there were some conflicts in dependencies, so I excuded all the dependencies of the library project (thay are always available because they are also included in the main project dependencies), but the error remains.
If I remove the library project from the dependencies of the main project, the error disappears.

May someone help me to solve this issue?

Thanks,
Stefano

[zakhrim]

I figured it out.
The library project depended on spring-security-core-3.1.1.RELEASE which depended on other many spring packages (such as core, aop, context, ...) all with the verson 3.0.7.
Once I excluded all the dependencies of spring-security-core from the library project POM file, the error disappaered.