traceback as:

Traceback (most recent call last):
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/osv.py", line 132, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/osv.py", line 199, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/osv.py", line 187, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/module/module.py", line 513, in     button_immediate_upgrade
    return self._button_immediate_function(cr, uid, ids, self.button_upgrade, context=context)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/module/module.py", line 477, in     _button_immediate_function
    config = pool.get('res.config').next(cr, uid, [], context=context) or {}
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/res/res_config.py", line 116, in next
    return self._next(cr, uid, context=context)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/res/res_config.py", line 100, in _next
    res = next.action_launch(context=context)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/orm.py", line 377, in function_proxy
    return attr(self._cr, self._uid, [self._id], *args, **kwargs)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/ir/ir_actions.py", line 793, in action_launch
    res = self.pool.get(act_type['type']).read(cr, uid, wizard.action_id.id, [], context=context)
TypeError: 'bool' object has no attribute '__getitem__'
2014-04-10 17:51:51,087 8617 ERROR demo7 openerp.netsvc: 'bool' object has no attribute '__getitem__'
Traceback (most recent call last):
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/netsvc.py", line 296, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/service/web_services.py", line 626, in dispatch
    res = fn(db, uid, *params)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/osv.py", line 190, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/osv.py", line 132, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/osv.py", line 199, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/osv.py", line 187, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/module/module.py", line 513, in     button_immediate_upgrade
    return self._button_immediate_function(cr, uid, ids, self.button_upgrade, context=context)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/module/module.py", line 477, in _button_immediate_function
    config = pool.get('res.config').next(cr, uid, [], context=context) or {}
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/res/res_config.py", line 116, in next
    return self._next(cr, uid, context=context)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/res/res_config.py", line 100, in _next
    res = next.action_launch(context=context)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/osv/orm.py", line 377, in function_proxy
    return attr(self._cr, self._uid, [self._id], *args, **kwargs)
  File "/home/arpit/workspace7.0/openerp/openerp-7.0/openerp/addons/base/ir/ir_actions.py", line 793, in action_launch
    res = self.pool.get(act_type['type']).read(cr, uid, wizard.action_id.id, [], context=context)
TypeError: 'bool' object has no attribute '__getitem__'