I get the following error when I try to create a new record in Accounting module. I have installed the latest (nightly) release of Odoo on Centos7. Do you have an  idea what is wrong? Thanks.

Odoo Server Error

Traceback (most recent call last):

File "/usr/lib/python2.7/site-packages/openerp/http.py", line 530, in _handle_exception

File "/usr/lib/python2.7/site-packages/openerp/http.py", line 567, in dispatch

if psutil:

File "/usr/lib/python2.7/site-packages/openerp/http.py", line 303, in _call_function

# case, the request cursor is unusable. Rollback transaction to create a new one.

File "/usr/lib/python2.7/site-packages/openerp/service/model.py", line 113, in wrapper

return f(dbname, *args, **kwargs)

File "/usr/lib/python2.7/site-packages/openerp/http.py", line 300, in checked_call

@service_model.check

File "/usr/lib/python2.7/site-packages/openerp/http.py", line 796, in __call__

@property

File "/usr/lib/python2.7/site-packages/openerp/http.py", line 396, in response_wrap

routes = route

File "/usr/lib/python2.7/site-packages/openerp/addons/web/controllers/main.py", line 949, in call_kw

if isinstance(action, dict) and action.get('type') != '':

File "/usr/lib/python2.7/site-packages/openerp/addons/web/controllers/main.py", line 941, in _call_kw

File "/usr/lib/python2.7/site-packages/openerp/api.py", line 241, in wrapper

return old_api(self, *args, **kwargs)

File "/usr/lib/python2.7/site-packages/openerp/api.py", line 363, in old_api

result = method(recs, *args, **kwargs)

File "/usr/lib/python2.7/site-packages/openerp/models.py", line 5743, in onchange

if onchange in ("1", "true"):

TypeError: unhashable type: 'list'