I'm new to WSO2 ESB and would like to try it out for some external integrations. I've installed the WSO2 Carbon 4.2 server and installed the ESB feature 4.8.1. After a restart, I'm getting some errors as below. Any tips or suggestions would be gratefully accepted.

Thanks.

[2014-03-06 10:01:08,521]  INFO {org.wso2.carbon.mediation.initializer.ServiceBusInitializer} -  Initializing Apache Synapse...
[2014-03-06 10:01:08,525] FATAL {org.wso2.carbon.mediation.initializer.ServiceBusInitializer} -  Couldn't initialize the ESB...
org.apache.synapse.SynapseException: The synapse.xml location ././
        ./repository/deployment/server/synapse-configs
    /default doesn't exist
    at org.apache.synapse.SynapseControllerFactory.handleFatal(SynapseControllerFactory.java:121)
    at org.apache.synapse.SynapseControllerFactory.validatePath(SynapseControllerFactory.java:113)
    at org.apache.synapse.SynapseControllerFactory.validate(SynapseControllerFactory.java:88)
    at org.apache.synapse.SynapseControllerFactory.createSynapseController(SynapseControllerFactory.java:44)
    at org.apache.synapse.ServerManager.init(ServerManager.java:102)
    at org.wso2.carbon.mediation.initializer.ServiceBusInitializer.initESB(ServiceBusInitializer.java:423)
    at org.wso2.carbon.mediation.initializer.ServiceBusInitializer.activate(ServiceBusInitializer.java:182)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
...
...
...
[2014-03-06 10:01:08,531]  INFO {org.wso2.carbon.rule.kernel.internal.ds.RuleEngineConfigDS} -  Successfully registered the Rule Config service
[2014-03-06 10:01:08,553] ERROR {org.wso2.carbon.security.internal.SecurityMgtServiceComponent} -  Failed to activate SecurityMgtServiceComponent
org.apache.axis2.phaseresolver.PhaseException: Did not find the desired phase 'Transport' while deploying handler 'POXSecurityHandler'.
    at org.apache.axis2.phaseresolver.PhaseHolder.addHandler(PhaseHolder.java:75)
    at org.apache.axis2.phaseresolver.PhaseResolver.engageModuleToFlow(PhaseResolver.java:68)
    at org.apache.axis2.phaseresolver.PhaseResolver.engageModuleToOperation(PhaseResolver.java:104)
    at org.apache.axis2.phaseresolver.PhaseResolver.engageModuleToOperation(PhaseResolver.java:110)
    at org.apache.axis2.description.AxisOperation.onEngage(AxisOperation.java:152)
    at org.apache.axis2.description.AxisDescription.engageModule(AxisDescription.java:478)
    at org.apache.axis2.description.AxisService.onEngage(AxisService.java:827)
    at org.apache.axis2.description.AxisDescription.engageModule(AxisDescription.java:478)
    at org.apache.axis2.description.AxisServiceGroup.onEngage(AxisServiceGroup.java:134)