MSS Business Package Deployment Error

Hi there, we tried to deploy MSS Business Package (version 6.0.1.2 - which is delivered in *.SCA format and deployed via the SAP Deployment Manager) on a PORTAL (SP12). Unfortunately we get the folllowing error "com.sap.sdm.util.sduread.|||FormatedSduFileException. The information about the development component found in the SDA..."

Is this because you require the SAP Java Components to be installed on the same PORTAL WAS Box (we have a seperated WAS box (ERP2004) with ECC and the Java Components installed on it.