Mondrian 4 and Pentaho 5 - Validation issues?

Hi everyone,

I decided to give the latest Mondrian 4 (and olap4j) snapshots a try with Pentaho 5.01 (CE) - but unfortunately failed. It appears as though there may be more to making this work than meets the eye. Does anyone have any tips? I tried replacing the JAR's, adding a new data source, then adding a new Analysis source, but the Schema validation failed looking for the "cubes" tag. I presume it's expecting a Mondrian 3 schema?

Exact error is below:
Nov 25, 2013 8:36:59 PM com.sun.jersey.spi.container.ContainerResponse mapMappableContainerException
SEVERE: The exception contained within MappableContainerException could not be mapped to a response, re-throwing to the HTTP container
java.lang.NoSuchFieldError: cubes

Any help would be awesome.

Thanks!

Adam