ORA-04022 Error Urgent

Question

I have a huge partitioned table and a procedure to rebuild index parallely depending on partitions.
I get this error most of the times .
ORA-20001: ORA-04022: nowait requested, but had to wait to lock dictionary
object
ORA-06512: at package name , line 917
ORA-04022: nowait requested, but had to wait to lock dictionary object
ORA-06512: at line
It is urgent me to fix it. Could anybody tell me why this error occurs and how to resolve it?
I appreciate for sharing knowledge

Answer 1

ORA-04022 Error
ALWAYS
Post Operating System (OS) name & version for DB server system.
Post results of
SELECT * from v$version;