ERROR DURING INTEGRATION OF ERICSSON NODEB using Element Manager on OSS

Hello Experts,
Can anyone assist with to resolve this error ?
Function:
SiteCreateRbsPreController

Additional Info:
setRuwPosition method should be overridden in sub class: se.ericsson.wcdma.rbs.bem.common.config.configitem.radioequipment.duwrbb.rbbmgmt.rbb.Rbb121aRruw