Org.eclipse.smarthome.io.rest.sitemap create instance exception

While I start OH2 within Eclipse IDE,

I got this

!ENTRY org.eclipse.equinox.ds 4 0 2016-11-22 11:22:37.022
!MESSAGE Exception occurred while creating new instance of component Component[
name = org.eclipse.smarthome.io.rest.sitemap
activate = activate
deactivate = deactivate
modified =
configuration-policy = optional
factory = null
autoenable = true
immediate = true
implementation = org.eclipse.smarthome.io.rest.sitemap.internal.SitemapResource
state = Unsatisfied
properties =
serviceFactory = false
serviceInterface = [org.eclipse.smarthome.io.rest.sitemap.internal.SitemapResource, org.eclipse.smarthome.io.rest.RESTResource]
references = {
Reference[name = ItemUIRegistry, interface = org.eclipse.smarthome.ui.items.ItemUIRegistry, policy = dynamic, cardinality = 0…1, target = null, bind = setItemUIRegistry, unbind = unsetItemUIRegistry]
Reference[name = SitemapSubscriptions, interface = org.eclipse.smarthome.io.rest.sitemap.SitemapSubscriptionService, policy = dynamic, cardinality = 0…1, target = null, bind = setSitemapSubscriptionService, unbind = unsetSitemapSubscriptionService]
Reference[name = SitemapProvider, interface = org.eclipse.smarthome.model.sitemap.SitemapProvider, policy = dynamic, cardinality = 0…n, target = null, bind = addSitemapProvider, unbind = removeSitemapProvider]
}
located in bundle = org.eclipse.smarthome.io.rest.sitemap_0.9.0.201610312128 [101]
]
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/smarthome/io/rest/SatisfiableRESTResource

It looks like org.eclipse.equinox.ds(osgi declarative servcie ) can NOT create instance for osgi service component of “org.eclipse.smarthome.io.rest.sitemap” correctly.

Is it a critical issue that has to be fixed or
I can simply neglect it for a while?

Thank you for your attention.