Hello All,

When I try to install Odoo8 latest version via Odoo documentation and proceed the "./openerp-server" command i'm getting following this error, 

Traceback (most recent call last):
  File "./openerp-server", line 2, in <module>
    import openerp
  File "/home/zone/openerp-8.0-29e08a2/openerp/__init__.py", line 72, in <module>
    import modules
  File "/home/zone/openerp-8.0-29e08a2/openerp/modules/__init__.py", line 27, in <module>
    from . import db, graph, loading, migration, module, registry
  File "/home/zone/openerp-8.0-29e08a2/openerp/modules/graph.py", line 32, in <module>
    import openerp.osv as osv
  File "/home/zone/openerp-8.0-29e08a2/openerp/osv/__init__.py", line 22, in <module>
    import osv
  File "/home/zone/openerp-8.0-29e08a2/openerp/osv/osv.py", line 23, in <module>
    from .orm import Model, TransientModel, AbstractModel
  File "/home/zone/openerp-8.0-29e08a2/openerp/osv/orm.py", line 5, in <module>
    from ..models import (
  File "/home/zone/openerp-8.0-29e08a2/openerp/models.py", line 62, in <module>
    from . import api
  File "/home/zone/openerp-8.0-29e08a2/openerp/api.py", line 71, in <module>
    from openerp.tools import frozendict
  File "/home/zone/openerp-8.0-29e08a2/openerp/tools/__init__.py", line 26, in <module>
    from misc import *
  File "/home/zone/openerp-8.0-29e08a2/openerp/tools/misc.py", line 54, in <module>
    from cache import *
  File "/home/zone/openerp-8.0-29e08a2/openerp/tools/cache.py", line 24, in <module>
    from decorator import decorator
ImportError: No module named decorator

So can you please anyone help me to resolve this?

Thank You.