Is R3.1.3 compatible with SAP Predictive Analytics 2.x?

Hi

Is there anyone out there using R3.1.3 with Sap PA 2.1 or 2.2?

Its my first attempt at using the R algorithms in Expert mode. In the configuration settings I've set the R installation folder to be the one which contains my R installations. However when I try running the R-CNR decision tree algorithm I get a message saying that the "The version of R installed is not compatible or the R environment is not set up properly"

Thanks

Ria