SAP PI 7.3 Upgrade : Full Cache Refresh Error

Hello All,

We are upgrading our QAT box to PI 7.3. It has multiple nodes and when we run the full cache refresh transaction we are getting the following error message

<Message>Could not parse InterfaceDetermination object.</Message>

<Trace>com.sap.aii.af.lib.util.configuration.ConfigurationException: InterfaceDetermination object is configured as operation-dependent but has not declared a xml root tag at com.sap.aii.af.service.cpa.impl.cache.directory.DirectoryDataSAXHandler.endElement(DirectoryDataSAXHandler.java:1587)

Can anyone give a few suggestions on how to resolve this issue ?

The delta cache refresh works fine though but the full cache refresh is giving these errors.

Thanks,

Kiran