I tried to follow the instructions in the SMX Bootstraps example, and after doing "features:install smxb-ping-pong" I got the following in the log

15:37:15,356 | ERROR | NAPSHOT-thread-1 | BlueprintCamelContext | 149 - org.apache.camel.camel-blueprint - 2.12.0.redhat-610312 | Error occurred during starting Camel: CamelContext(smxb-pinger) due Failed to create Producer for endpoint: Endpoint[nmr://pong]. Reason: java.lang.NullPointerException
org.apache.camel.FailedToCreateProducerException: Failed to create Producer for endpoint: Endpoint[nmr://pong]. Reason: java.lang.NullPointerException
at org.apache.camel.impl.ProducerCache.doGetProducer(ProducerCache.java:409)
at org.apache.camel.impl.ProducerCache.acquireProducer(ProducerCache.java:123)
at org.apache.camel.processor.SendProcessor.doStart(SendProcessor.java:191)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:74)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:59)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:103)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:89)
at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:79)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:74)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:59)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:103)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:89)
at org.apache.camel.processor.RedeliveryErrorHandler.doStart(RedeliveryErrorHandler.java:1154)
at org.apache.camel.support.ChildServiceSupport.start(ChildServiceSupport.java:41)
at org.apache.camel.support.ChildServiceSupport.start(ChildServiceSupport.java:28)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:74)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:59)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:103)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:89)
at org.apache.camel.processor.interceptor.DefaultChannel.doStart(DefaultChannel.java:153)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:74)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:59)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:103)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:61)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:103)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:89)
at org.apache.camel.processor.MulticastProcessor.doStart(MulticastProcessor.java:984)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:74)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:59)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:103)
at org.apache.camel.util.ServiceHelper.startServices(ServiceHelper.java:89)
at org.apache.camel.processor.DelegateAsyncProcessor.doStart(DelegateAsyncProcessor.java:79)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:74)
at org.apache.camel.impl.RouteService.startChildService(RouteService.java:329)
at org.apache.camel.impl.RouteService.warmUp(RouteService.java:158)
at org.apache.camel.impl.DefaultCamelContext.doWarmUpRoutes(DefaultCamelContext.java:2124)[141:org.apache.camel.camel-core:2.12.0.redhat-610312]
at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:2054)[141:org.apache.camel.camel-core:2.12.0.redhat-610312]
at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:1842)[141:org.apache.camel.camel-core:2.12.0.redhat-610312]
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1714)[141:org.apache.camel.camel-core:2.12.0.redhat-610312]
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1559)[141:org.apache.camel.camel-core:2.12.0.redhat-610312]
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1527)[141:org.apache.camel.camel-core:2.12.0.redhat-610312]
at org.apache.camel.blueprint.BlueprintCamelContext.start(BlueprintCamelContext.java:177)
at org.apache.camel.blueprint.BlueprintCamelContext.maybeStart(BlueprintCamelContext.java:209)
at org.apache.camel.blueprint.BlueprintCamelContext.serviceChanged(BlueprintCamelContext.java:147)
at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:934)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:795)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:544)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4666)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.Felix.registerService(Felix.java:3674)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:347)
at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:353)
at org.apache.camel.blueprint.BlueprintCamelContext.init(BlueprintCamelContext.java:97)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.7.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[:1.7.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.7.0_45]
at java.lang.reflect.Method.invoke(Method.java:606)[:1.7.0_45]
at org.apache.aries.blueprint.utils.ReflectionUtils.invoke(ReflectionUtils.java:297)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BeanRecipe.invoke(BeanRecipe.java:958)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BeanRecipe.runBeanProcInit(BeanRecipe.java:712)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate2(BeanRecipe.java:824)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:787)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at java.util.concurrent.FutureTask.run(FutureTask.java:262)[:1.7.0_45]
at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:245)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BlueprintRepository.createAll(BlueprintRepository.java:183)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.instantiateEagerComponents(BlueprintContainerImpl.java:676)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:374)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:261)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:270)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.blueprint.container.BlueprintExtender.modifiedBundle(BlueprintExtender.java:233)[14:org.apache.aries.blueprint.core:1.0.1.redhat-610312]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:500)[9:org.apache.aries.util:1.0.1.redhat-610312]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:433)[9:org.apache.aries.util:1.0.1.redhat-610312]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$AbstractTracked.track(BundleHookBundleTracker.java:725)[9:org.apache.aries.util:1.0.1.redhat-610312]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.bundleChanged(BundleHookBundleTracker.java:463)[9:org.apache.aries.util:1.0.1.redhat-610312]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$BundleEventHook.event(BundleHookBundleTracker.java:422)[9:org.apache.aries.util:1.0.1.redhat-610312]
at org.apache.felix.framework.util.SecureAction.invokeBundleEventHook(SecureAction.java:1103)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.util.EventDispatcher.createWhitelistFromHooks(EventDispatcher.java:696)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:484)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4650)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.Felix$4.run(Felix.java:2123)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at org.apache.felix.framework.Felix$5.run(Felix.java:2167)[org.apache.felix.framework-4.0.3.redhat-610312.jar:]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)[:1.7.0_45]
at java.util.concurrent.FutureTask.run(FutureTask.java:262)[:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[:1.7.0_45]
at java.lang.Thread.run(Thread.java:744)[:1.7.0_45]
Caused by: java.lang.NullPointerException
at org.apache.servicemix.camel.nmr.ServiceMixProducer.doStart(ServiceMixProducer.java:152)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:74)
at org.apache.camel.impl.ProducerCache.doGetProducer(ProducerCache.java:407)
... 92 more