Patch error

Hi to all,

I am installing orcale 10 g

after successfull installation i am going to install patch 10.2 but it is showing the error..

when i was apply patches...

it shows..

OUI-10091:There are no patches that need to be applied from the patchset orcale 10 g release to patch set 1 10.2.0.2.0

what can be the reason for that

please suggest