Reverse for is not a Valid view Function or Pattern name. only happens in production

Question

I do not work long with Django but I come here turning around + now I fall into this problem I am not able to solve, so I ask for help from those who can.

I have my application working in perfect development, but when I deploy for production presents the following msg:

"Reverse for 'geracontratocompravenda' not found. 'geracontratocompravenda' is not a Valid view Function or Pattern name.

The fact is that in development I am using python 3.5 with Django 2.0.1 on the production server is python 3.6 with Django 2.0.8.

I have distrust that may be version problem because developing works.

Since I thank,

João Neto

py.

url(r'geracontratocompravenda/(?P<pk>[0-9]+)/$',
    views.GeraContratoCompraVenda.as_view(),name='geracontratocompravenda'),

py views.

class General Contratocompravenda(Customview):

permission_codename = 'change_pedidovenda'

def get(self, request, *args, **kwargs):
    venda_id = kwargs.get('pk', None)
    instance = PedidoVenda.objects.get(id=venda_id)
    instance.status = '2'
    instance.save()
    return redirect(reverse_lazy('vendas:editarpedidovendaview', kwargs={'pk': instance.id}))

In my html

href="{% url 'sales:geracontratocompraven' Object.id %}"

Traceback

Environment:

Django Version: 2.0.8 Python Version: 3.6.2 Installed Applications: ['Django.contrib.admin', 'Django.contrib.auth', 'Django.contrib.contenttypes', 'Django.contrib.Sessions', 'Django.contrib.messages', 'Django.contrib.staticfiles', 'stock.apps.base', 'stock.apps.login', 'stock.apps.cadastre', 'stock.apps.sales', 'stock.apps.shopping', 'stock.apps.fiscal', 'financial stock.apps.', 'stock.apps.stock'] Installed Middleware: ['Django.middleware.security.Securitymiddleware', 'Django.contrib.Sessions.middleware.Sessionmiddleware', 'Django.middleware.common.Commonmiddleware', 'Django.middleware.csrf.Csrfviewmiddleware', 'Django.contrib.auth.middleware.Authenticationmiddleware', 'Django.contrib.messages.middleware.Messagemiddleware', 'Django.middleware.clickjacking.Xframeoptionsmiddleware', 'stock.middleware.Loginrequiredmiddleware']

Template error: In template /home/handson/apps_wsgi/fortcar/templates/base/base.html, error at line 0 Reverse for 'geracontratocompravenda' not found. 'geracontratocompravenda' is not a Valid view Function or Pattern name. 1 : 2 : 3 : 4 : 5 : {%load staticfiles %} 6 : 7 : 8 : 9 : 10 :

Traceback:

File "/home/handson/. local/lib/python3.6/site-Packages/Django/core/handlers/Exception.py" in Inner 35. Answer = get_response(request)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/core/handlers/base.py" in _get_response 158. Sponse = self.process_exception_by_middleware(e, request)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/core/handlers/base.py" in _get_response 156. Answer = Answer.()

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/Response.py" in render 106. self.content = self.rendered_content

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/Response.py" in rendered_content 83. content = template.render(context, self. _request)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/backends/Django.py" in render 61. Return self.template.render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in render 175. self. _render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in _render 167. Return self.nodelist.render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in render 943. bit = Node.render_annotated(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in render_annotated 910. Return self.render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/loader_tags.py" in render 155. Return compiled_parent. _render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in _render 167. Return self.nodelist.render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in render 943. bit = Node.render_annotated(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in render_annotated 910. Return self.render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/loader_tags.py" in render 67. result = block.nodelist.render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in render 943. bit = Node.render_annotated(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/base.py" in render_annotated 910. Return self.render(context)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/template/defaulttags.py" in render 447. url = Reverse(view_name, args=args, kwargs=kwargs, current_app=current_app)

File "/home/handson/. local/lib/python3.6/site-Packages/Django/urls/base.py" in Reverse 90. Return iri_to_uri(resolve. _reverse_with_prefix(view, prefix, *args, **kwargs))

File "/home/handson/. local/lib/python3.6/site-Packages/Django/urls/resolvers.py" in _reverse_with_prefix 634. raise Noreversematch(msg)

Exception Type: Noreversematch at /sales/pedidovenda/edit/2/ Exception Value: Reverse for 'geracontratocompravenda' not found. 'geracontratocompravenda' is not a Valid view Function or Pattern name.