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Hi All,
I created blank data base. I installed CRM, Purchase, Warehouse,Manufacturing, 
Human resources, Accounting modules.
I have created the organization under Settings-> Companies. 
I created 3 products A,B and C. Also, I have created a Bill of Material for A 
with BOM components as B and C.
I navigated to product A and clicked on Request procurement button which took 
me to next screen with a button ask for new products. This leads to INT: admin 
screen which has 'Run Procurement' Button. When this button is clicked, I get 
the following error.

OpenERP Server Error
Client Traceback (most recent call last):
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\openerp\addons\web\http.py", line 195, in 
dispatch
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\openerp\addons\web\controllers\main.py", line 
1089, in exec_workflow
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\openerp\addons\web\session.py", line 148, in 
exec_workflow
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\openerp\addons\web\session.py", line 31, in 
proxy_method
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\openerp\addons\web\session.py", line 104, in 
send


Server Traceback (most recent call last):
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\openerp\addons\web\session.py", line 90, in 
send
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\netsvc.py", line 289, in 
dispatch_rpc
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\service\web_services.py", line 614, 
in dispatch
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\osv\osv.py", line 123, in wrapper
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\osv\osv.py", line 202, in 
exec_workflow
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\openerp\addons\audittrail\audittrail.py", 
line 520, in exec_workflow_cr
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\osv\osv.py", line 195, in 
exec_workflow_cr
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\osv\orm.py", line 3928, in 
_workflow_signal
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\wkf_service.py", line 119, 
in trg_validate
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\instance.py", line 43, in 
validate
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 60, in 
process
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 175, in 
_split_test
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 183, in 
_join_test
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 40, in 
create
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 60, in 
process
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 175, in 
_split_test
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 183, in 
_join_test
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 40, in 
create
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 60, in 
process
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 175, in 
_split_test
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 183, in 
_join_test
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 40, in 
create
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 52, in 
process
  File "C:\Program Files (x86)\OpenERP 
7.0-20130118-002240\Server\server\.\openerp\workflow\workitem.py", line 133, in 
_execute
TypeError: 'NoneType' object is unsubscriptable

This, however, does not happen when db with demonstration data is used. 
I would appreciate any help
Regards

** Affects: openobject-addons
     Importance: Undecided
         Status: New

-- 
OpenERP 7.0 - Product Screen -Request Procurement
https://bugs.launchpad.net/bugs/1126178
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Team, which is subscribed to OpenERP Addons.

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