Oracle upgrade

Hi ,

     When i try to upgrade oracle from 10.2.0.4 to 11g using DBUA.I'm the getting the below error

" ORA-04023 - Object sys.standard could not be validated or authorized ".

I'm unable to ignore the error also.

I've run the pre-requisite scripts and compiled the invalid objects also before running DBUA.

But still issue is there.

I've attached the screenshot also of that error message.

Regards

Yugandhar