I think this is caused by starter example is out-of-data for the FUSE ESB 4.3.0-fuse-00-00.
The activemq namespace is for Camel 1.x
The camel namespace is for Camel 2.x.
And FUSE ESB 4.3.0-fuse-00-00 is using camel 2.x
Thanks for pointing this out. Those are simply obsolete bundle versions in the getting started guide. We'll update the docs, but in the mean time you can use
>osgi:install -s mvn:org.apache.camel/camel-example-osgi/2.4.0
and we also have a similar example in the ServiceMix examples directory. You can install that one as a feature like this: