[Yum] Error After Dependency Check

[Ivan Low]

Hi, does anybody know what is the problem to this?
It's the new install YDL3.0 and it's the first time I update the
system and now I got this error.
Ivan

Resolving dependencies
Traceback (most recent call last):
  File "/usr/bin/yum", line 44, in ?
    yummain.main(sys.argv[1:])
  File "yummain.py", line 202, in main
  File "nevral.py", line 263, in resolvedeps
  File "archwork.py", line 63, in bestarch
IndexError: list index out of range