Hi Francisco !
On Thu, 12 Dec 2019 04:56:17 -0300 Francisco Maria Moyano Casco <moyanocasco.francis...@gmail.com> wrote: > Hello I get an error creating some records trough M2O fields. > > > "/home/fran/.local/lib/python3.6/site-packages/tryton/gui/window/view_form/model/record.py", > line 514, in set_on_change > self.value[field_rec_name] = val[field_rec_name] > I think you're hitting this bug https://savannah.gnu.org/bugs/?57371 Which was fixed on 3.6.4 Make sure you is not the modules from an outated version. All the best Luis