'project_id' is not defined when opening task view

[Aline (OpenERP)]

in web client, trunk,

create a db without demo data -> from application home page, install project -> got to Project/Projetc/Tasks

bug :

[2011-12-05 08:37:05,882][?] INFO:werkzeug:127.0.0.1 - - [05/Dec/2011 08:37:05] "POST /web/dataset/search_read HTTP/1.1" 200 -
[2011-12-05 08:37:07,127][?] ERROR:web.common.http.JSONRequest.dispatch:An error occured while handling a json request
Traceback (most recent call last):
  File "/home/aline/source/web/trunk/addons/web/common/http.py", line 154, in dispatch
    response["result"] = method(controller, self, **self.params)
  File "/home/aline/source/web/trunk/addons/web/controllers/main.py", line 663, in action
    [('ir.ui.menu', menu_id)], False)
  File "/home/aline/source/web/trunk/addons/web/controllers/main.py", line 521, in load_actions_from_ir_values
    for id, name, action in actions]
  File "/home/aline/source/web/trunk/addons/web/controllers/main.py", line 532, in clean_action
    action['context'] = eval( action['context'], eval_ctx ) or {}
  File "<string>", line 1, in <module>
NameError: name 'project_id' is not defined