I get this error:

Odoo Server Error

Traceback (most recent call last):

File "/opt/odoo/openerp/http.py", line 643, in _handle_exception

return super(JsonRequest, self)._handle_exception(exception)

File "/opt/odoo/openerp/http.py", line 680, in dispatch

result = self._call_function(**self.params)

File "/opt/odoo/openerp/http.py", line 316, in _call_function

return checked_call(self.db, *args, **kwargs)

File "/opt/odoo/openerp/service/model.py", line 118, in wrapper

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

File "/opt/odoo/openerp/http.py", line 309, in checked_call

result = self.endpoint(*a, **kw)

File "/opt/odoo/openerp/http.py", line 959, in __call__

return self.method(*args, **kw)

File "/opt/odoo/openerp/http.py", line 509, in response_wrap

response = f(*args, **kw)

File "/opt/odoo/addons/web/controllers/main.py", line 892, in call_kw

return self._call_kw(model, method, args, kwargs)

File "/opt/odoo/addons/web/controllers/main.py", line 884, in _call_kw

return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)

File "/opt/odoo/openerp/api.py", line 250, in wrapper

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

File "/opt/odoo/openerp/api.py", line 381, in old_api

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

File "/opt/odoo/addons/project_emp_team/models/project_emp_team.py", line 71, in onchange

match = onchange_v7.match(field_onchange[field_name])

TypeError: unhashable type: 'list'