ValueError: save() prohibited to prevent data loss due to unsaved related object 'user'.

[Hamza-Lachi]

Hi, I want to register me user but I get this error:

Internal Server Error: /api/rest-auth/registration/
Traceback (most recent call last):
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\views\generic\base.py", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\decorators.py", line 43, in _wrapper
    return bound_method(*args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\views\decorators\debug.py", line 76, in sensitive_post_parameters_wrapper
    return view(request, *args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_auth\registration\views.py", line 46, in dispatch
    return super(RegisterView, self).dispatch(*args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_framework\views.py", line 505, in dispatch
    response = self.handle_exception(exc)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_framework\views.py", line 465, in handle_exception
    self.raise_uncaught_exception(exc)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_framework\views.py", line 476, in raise_uncaught_exception
    raise exc
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_framework\views.py", line 502, in dispatch
    response = handler(request, *args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_framework\generics.py", line 190, in post
    return self.create(request, *args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_auth\registration\views.py", line 65, in create
    user = self.perform_create(serializer)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_auth\registration\views.py", line 73, in perform_create
    user = serializer.save(self.request)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\rest_auth\registration\serializers.py", line 210, in save
    adapter.save_user(request, user, self)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\allauth\account\adapter.py", line 243, in save_user
    user.save()
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\contrib\auth\base_user.py", line 66, in save
    super().save(*args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\base.py", line 
746, in save
    force_update=force_update, update_fields=update_fields)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\base.py", line 
771, in save_base
    update_fields=update_fields,
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\dispatch\dispatcher.py", 
line 175, in send
    for receiver in self._live_receivers(sender)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\dispatch\dispatcher.py", 
line 175, in <listcomp>
    for receiver in self._live_receivers(sender)
  File "D:\Learning\Scripts\practice-course\profilesapi\profiles\models.py", line 29, in create_profile
    Profile.objects.create(user=instance).save()
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\manager.py", line 82, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\query.py", line 433, in create
    obj.save(force_insert=True, using=self.db)
  File "C:\Users\HamzaLachi\AppData\Local\Programs\Python\Python37\lib\site-packages\django\db\models\base.py", line 
694, in save
    "unsaved related object '%s'." % field.name
ValueError: save() prohibited to prevent data loss due to unsaved related object 'user'.

can you please tell me why I'm getting this issue!

[NoorHasanShaik86]

any solution for above error