'WizardStep2Form' has no field named 'language_code'. in Djangocms aldryn_newsblog

Question

I have successfully installed aldryn_newsblog. am using djangocms. Every time i try to Create a new news/blog article. i get an error

    ValueError at /cms_wizard/create/
'WizardStep2Form' has no field named 'language_code'.

Here is my settings.py file INSTALLED_APPS

    #  Aldryn News & Blog
'aldryn_apphooks_config',
'aldryn_boilerplates',
'aldryn_categories',
'aldryn_common',
'aldryn_newsblog',
'aldryn_people',
'aldryn_reversion',
'aldryn_translation_tools',
#'djangocms_text_ckeditor',
#'easy_thumbnails',
#'filer',
'parler',
#'reversion',
'sortedm2m',
'taggit',
'absolute',
'aldryn_forms',
'aldryn_forms.contrib.email_notifications',
'captcha',
'emailit',
#  Aldryn News & Blog

Here is the full traceback

Traceback:

File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response 132. response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in view 71. return self.dispatch(request, *args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py" in inner 145. return func(*args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/cms/wizards/views.py" in dispatch 38. request, *args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/formtools/wizard/views.py" in dispatch 237. response = super(WizardView, self).dispatch(request, *args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in dispatch 89. return handler(request, *args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/formtools/wizard/views.py" in post 290. if form.is_valid(): File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py" in is_valid 184. return self.is_bound and not self.errors File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py" in errors 176. self.full_clean() File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py" in full_clean 394. self._post_clean() File "/usr/local/lib/python2.7/dist-packages/parler/forms.py" in _post_clean 83. self.save_translated_fields() File "/usr/local/lib/python2.7/dist-packages/parler/forms.py" in save_translated_fields 110. self._clean_translation_model(translation_model, exclude) File "/usr/local/lib/python2.7/dist-packages/parler/forms.py" in _clean_translation_model 125. self._update_errors(e) File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in _update_errors 402. self.add_error(None, errors) File "/usr/local/lib/python2.7/dist-packages/django/forms/forms.py" in add_error 360. "'%s' has no field named '%s'." % (self.class.name, field))

Exception Type: ValueError at /cms_wizard/create/ Exception Value: 'WizardStep2Form' has no field named 'language_code'.

Kindly assist

Hello @Paulo i have edited the question to include the full traceback — Phares

andrewjadams3 andrewjadams3 · Accepted Answer · 2016-06-30T18:50:45

I just encountered a similar issue: 'ArticleForm' has no field named 'language_code'.

Turned out to be a conflict with the most recent version of django-parler (see the changelog here).

Note: django-parler models now mandate that a language code is selected; either by calling model.set_current_language(), Model.objects.language() or activating a gettext environment. The latter always happens in a standard web request, but needs to happen explicitly in management commands. This avoids hard to debug situations where unwanted model changes happen on implicitly selected languages.

For a quick fix, try running pip uninstall django-parler and then pip install django-parler==1.6.2 (or pin the version in your requirements.txt file if you have one).

If you are able to update your versions of django, django CMS, and other dependencies, that may work as well (and not limit you to an older version of django-parler)

'WizardStep2Form' has no field named 'language_code'. in Djangocms aldryn_newsblog

1 Answers