Software update manager(SUM) getting error while upgrade Solman 7.1

Hi All,

i am getting an error while using SUM(software update manager) Tool in Solman 7.1 in post processing step.

Error :

Unable to execute the SDT request ABAP operation post-execute on hostname SAPSMD instance 00 Post-Uptime execution of the ABAP upgrade request ABAP has failed Error from unit observer Cannot execute unit post-execute, current unit is extract.

Please help me ..

Thanks,

Raj kihsor