vCenetr Virtual Appliance 5.5 : AD: The OU format is invalid

Hi I am trying to join virtual center appliance 5.5 to AD 2012 R2 but its giving me error while joininh the domain : The OU format is invalid

command:

/usr/sbin/vpxd_servicecfg ad write ucpadmin <password> podd.local

log output

2014-07-07 22:21:02 24055: START locking... /usr/sbin/vpxd_servicecfg ad write

2014-07-07 22:21:02 24058: [24055]BEGIN execution of: /usr/sbin/vpxd_servicecfg 'ad' 'write' 'ucpadmin' CENSORED 'podd.local' 'Users'

2014-07-07 22:21:02 24058: Testing domain (podd.local)

2014-07-07 22:21:02 24058: Enabling active directory: 'podd.local' 'ucpadmin'

2014-07-07 22:21:04 24058: ERROR: Enabling active directory failed: Joining to AD Domain:   podd.local

With Computer DNS Name: testVC.podd.local

Error: Lsass Error [code 0x0000000b]

The OU format is invalid.

2014-07-07 22:21:04 24058: VC_CFG_RESULT=302

2014-07-07 22:21:04 24058: END execution

Any idea ? any one seen this error before ?