Error After installing crm_claim_rma

For the product claims, I installed crm_claim_rma and product_warranty modules but after installing the modules an error is comes when I Updating the quantity of a product

Client Traceback (most recent call last):
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\common\http.py", line 180, in dispatch
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\controllers\main.py", line 1004, in call_button
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\controllers\main.py", line 948, in call_common
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\controllers\main.py", line 962, in _call_kw
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\common\openerplib\main.py", line 250, in proxy
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\common\openerplib\main.py", line 117, in proxy
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\common\http.py", line 611, in send

Server Traceback (most recent call last):
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\web\common\http.py", line 592, in send
  File "C:\Program Files\OpenERP 6.1-1\server\.\openerp\netsvc.py", line 360, in dispatch_rpc
  File "C:\Program Files\OpenERP 6.1-1\server\.\openerp\service\web_services.py", line 572, in dispatch
  File "C:\Program Files\OpenERP 6.1-1\server\.\openerp\osv\osv.py", line 167, in execute_kw
  File "C:\Program Files\OpenERP 6.1-1\server\.\openerp\osv\osv.py", line 121, in wrapper
  File "C:\Program Files\OpenERP 6.1-1\server\.\openerp\osv\osv.py", line 176, in execute
  File "C:\Program Files\OpenERP 6.1-1\server\.\openerp\osv\osv.py", line 164, in execute_cr
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\stock\wizard\stock_change_product_qty.py", line 99, in change_product_qty
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\stock\stock.py", line 2699, in action_confirm
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\stock\stock.py", line 2644, in _inventory_line_hook
  File "C:\Program Files\OpenERP 6.1-1\server\openerp\addons\crm_claim_rma\stock.py", line 45, in create
KeyError: 'picking_id'