Exception message: Build graph construction failed for (DescendantAddresses(directory=u''), Select(Collection.of(HydratedTarget))):
Computing Select(DescendantAddresses(directory=u''), =Collection.of(HydratedTarget))
  Computing Task(<class 'pants.engine.addressable.Collection.of(HydratedTarget)'>, DescendantAddresses(directory=u''), =Collection.of(HydratedTarget))
    Computing Dependencies(DescendantAddresses(directory=u''), =HydratedTarget)
      Computing Dependencies(BuildFileAddress(ads/engagement_counter/BUILD, promoted_ec_scalding_repl), =HydratedTarget)
        Computing Dependencies(ads/engagement_counter:promoted_ec_bundle, =HydratedTarget)
          Computing Select(ads/engagement_counter:promoted_ec_bundle, =HydratedTarget)
            Computing Task(<function hydrate_target at 0x105a1f758>, ads/engagement_counter:promoted_ec_bundle, =HydratedTarget)
              Computing Dependencies(ads/engagement_counter:promoted_ec_bundle, =HydratedField)
                Computing Select(BundlesField(address=BuildFileAddress(ads/engagement_counter/BUILD, promoted_ec_bundle), bundles=[BundleAdaptor(fileset=['../config/prod_db.conf'], relative_to='../config')], filespecs_list=[{u'exclude': [], u'globs': [u'../config/prod_db.conf']}], path_globs_list=[PathGlobs(include=(u'ads/engagement_counter/../config/prod_db.conf',), exclude=())]), =HydratedField)
                  Computing Task(<function hydrate_bundles at 0x105a1fed8>, BundlesField(address=BuildFileAddress(ads/engagement_counter/BUILD, promoted_ec_bundle), bundles=[BundleAdaptor(fileset=['../config/prod_db.conf'], relative_to='../config')], filespecs_list=[{u'exclude': [], u'globs': [u'../config/prod_db.conf']}], path_globs_list=[PathGlobs(include=(u'ads/engagement_counter/../config/prod_db.conf',), exclude=())]), =HydratedField)
                    Throw(ads/engagement_counter is not a prefix of ads/config/prod_db.conf)