can't install "switchyard" feature

2016-03-18 19:50:20,468 | ERROR | l Console Thread | Console                          | 38 - org.apache.karaf.shell.console - 2.4.0.redhat-630033 | Exception caught while executing command
java.lang.Exception: Can not resolve feature:
Unsatisfied requirement(s):
---------------------------
   package:(&(package=org.apache.camel.core.xml))
      SwitchYard: Common - Camel

	at org.apache.karaf.features.obr.internal.ObrResolver.resolve(ObrResolver.java:131)[13:org.apache.karaf.features.obr:2.4.0.redhat-630033]
	at org.apache.karaf.features.internal.FeaturesServiceImpl.resolve(FeaturesServiceImpl.java:813)[10:org.apache.karaf.features.core:2.4.0.redhat-630033]
	at org.apache.karaf.features.internal.FeaturesServiceImpl.doInstallFeature(FeaturesServiceImpl.java:702)[10:org.apache.karaf.features.core:2.4.0.redhat-630033]
	at org.apache.karaf.features.internal.FeaturesServiceImpl.doInstallFeature(FeaturesServiceImpl.java:659)[10:org.apache.karaf.features.core:2.4.0.redhat-630033]
	at org.apache.karaf.features.internal.FeaturesServiceImpl.doInstallFeatures(FeaturesServiceImpl.java:462)[10:org.apache.karaf.features.core:2.4.0.redhat-630033]
	at org.apache.karaf.features.internal.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:432)[10:org.apache.karaf.features.core:2.4.0.redhat-630033]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_74]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_74]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_74]
	at java.lang.Thread.run(Thread.java:745)[:1.8.0_74]