I am not sure if I am helping here but the spring-dm feature depends on spring [2.5.6,4) as seen below
root > features:info spring-dm Description of spring-dm 1.2.1 feature ---------------------------------------------------------------- Feature has no configuration Feature has no configuration files Feature depends on: spring [2.5.6,4) so I think uninstalling Spring 3.2.4.RELEASE is going to cause you problems. This is also a concern to us as we have significant investment in Spring + (camel +other) and we don't have a clear migration path post Spring 3. I can also testify to a fair amount of frustration in getting a particular version of Spring to run. Our approach was to redefine (override) the default Spring features and their versions in a custom features file. -- View this message in context: http://karaf.922171.n3.nabble.com/Spring-4-0-2-and-spring-dm-tp4033093p4033171.html Sent from the Karaf - User mailing list archive at Nabble.com.