JBoss Fuse Fabric MQ error

I need some help with an error setting up a a fabric mq.

I have the latest Fuse installed on 3 servers supporting a Fabric MQ.
I'm new to JBoss Fuse my goal is to setup a Fabric running 3 MQ containers and 3 Camel routes.

I have setup a Fabric that includes the 3 servers.
I'm getting the following error in the MQ container log:

Exception on start: org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'org.apache.activemq.xbean.XBeanBrokerService#0' defined in URL [profile:broker.xml]: Could not resolve placeholder 'replicas' in string value "${replicas}"; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'replicas' in string value "${replicas}"

Below are my configs.

My org.fusesource.mq.fabric.server-esbbroker file contains the following config:

replicas = 3
standby.pool = default
connectors = openwire
broker-name = esbbroker_${karaf.name}
data = ${karaf.base}/data/esbbroker
replicating = true
config = profile:broker.xml
group = esbbrokergrp
kind = Replicated
network =
openwire-port = 61617

Broker.xml