[GeoNode-users] GeoNode 2.8 Add remote service error

[Matteo Conte]

Hi all, 
when I try to add a remote service I get this result. I tried several WMS services but nothing changes 
[ https://user-images.githubusercontent.com/958331/45446264-bae5b500-b6cc-11e8-9053-410045d1c82e.JPG ] 
In the apache log I find this error 
extern "Python": function Cryptography_rand_bytes() called, but @ffi.def_extern() was not called i[Wed Sep 12 13:46:30.111888 2018] [wsgi:error] [pid 10169:tid 140123747006208] Internal Server Error: /services/register/ 
[Wed Sep 12 13:46:30.111953 2018] [wsgi:error] [pid 10169:tid 140123747006208] Traceback (most recent call last): 
[Wed Sep 12 13:46:30.111959 2018] [wsgi:error] [pid 10169:tid 140123747006208] File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py", line 132, in get_response 
[Wed Sep 12 13:46:30.111964 2018] [wsgi:error] [pid 10169:tid 140123747006208] response = wrapped_callback(request, *callback_args, **callback_kwargs) 
[Wed Sep 12 13:46:30.111968 2018] [wsgi:error] [pid 10169:tid 140123747006208] File "/usr/lib/python2.7/dist-packages/django/contrib/auth/decorators.py", line 22, in _wrapped_view 
[Wed Sep 12 13:46:30.111972 2018] [wsgi:error] [pid 10169:tid 140123747006208] return view_func(request, *args, **kwargs) 
[Wed Sep 12 13:46:30.111975 2018] [wsgi:error] [pid 10169:tid 140123747006208] File "/usr/local/lib/python2.7/dist-packages/geonode/services/views.py", line 86, in register_service 
[Wed Sep 12 13:46:30.111979 2018] [wsgi:error] [pid 10169:tid 140123747006208] service.full_clean() 
[Wed Sep 12 13:46:30.111983 2018] [wsgi:error] [pid 10169:tid 140123747006208] File "/usr/lib/python2.7/dist-packages/django/db/models/base.py", line 1171, in full_clean 
[Wed Sep 12 13:46:30.111986 2018] [wsgi:error] [pid 10169:tid 140123747006208] raise ValidationError(errors) 
[Wed Sep 12 13:46:30.111990 2018] [wsgi:error] [pid 10169:tid 140123747006208] ValidationError: {'proxy_base': [u'Inserisci un URL valido.']} 


If I try the service url on QGIS it work fine 
Can you help me? 
Best regards 
Matteo 

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