title: Django Error with custom login model
body: <p>Hello I trying to make django custom user model but I am getting the following error. - </p>
  
  <p>ERRORS:</p>
  
  <blockquote>
    <p>auth.User.groups: (fields.E304) Reverse accessor for 'User.groups'
    clashes with reverse accessor for 'Freelancer.groups'.
            HINT: Add or change a related_name argument to the definition for 'User.groups' or 'Freelancer.groups'. auth.User.user_permissions:
    (fields.E304) Reverse accessor for 'User.user_permissions' clashes
    with reverse accessor for 'Freelancer.user_permissions'.
            HINT: Add or change a related_name argument to the definition for 'User.user_permissions' or 'Freelancer.user_permissions'.
    login.Freelancer.groups: (fields.E304) Reverse accessor for
    'Freelancer.groups' clashes with reverse accessor for 'User.groups'.
            HINT: Add or change a related_name argument to the definition for 'Freelancer.groups' or 'User.groups'. login.Freelancer.groups:
    (fields.E331) Field specifies a many-to-many relation through model
    'login.Freelancer_groups', which has not been installed.
    login.Freelancer.user_permissions: (fields.E304) Reverse accessor for
    'Freelancer.user_permissions' clashes with reverse accessor for
    'User.user_permissions'.
            HINT: Add or change a related_name argument to the definition for 'Freelancer.user_permissions' or 'User.user_permissions'.
    login.Freelancer.user_permissions: (fields.E331) Field specifies a
    many-to-many relation through model
    'login.Freelancer_user_permissions', which has not been installed.</p>
    
    <p>System check identified 6 issues (0 silenced).</p>
  </blockquote>
  
  <p><strong>models.py:</strong></p>
  
  <pre><code>from django.contrib.auth.tests.custom_user import CustomUserManager
  from django.db import models
  from django.utils import timezone
  from django.utils.http import urlquote
  from django.utils.translation import ugettext_lazy as _
  from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin
  from crm import settings
  
  
  class FreelancerManager(BaseUserManager):
      def create_user(self, name, skills, password=None):
          if not name:
              raise ValueError('Users must have a unique name ')
  
          user = self.model(
              name=self.name,
              skills=skills,
          )
          user.set_password(password)
          user.save(using=self._db)
          return user
  
      def create_superuser(self, name, skills, password):
          """
          Creates and saves a superuser with the given email, date of
          birth and password.
          """
          user = self.create_user(
              name,
              password=password,
              skills=skills,
          )
          user.is_admin = True
          user.save(using=self._db)
          return user
  
  
  class Freelancer(AbstractBaseUser, PermissionsMixin):
      name = models.OneToOneField(settings.AUTH_USER_MODEL,
                                  related_name='Freelancer_profile',
                                  verbose_name='name',
                                  max_length=20,
                                  unique=True, )
  
      field_of_interest = models.CharField(max_length=200)
      skills = models.TextField()
      experience = models.TextField()
  
      is_active = models.BooleanField(default=True)
      is_admin = models.BooleanField(default=False)
  
      objects = FreelancerManager()
  
      USERNAME_FIELD = 'name'
      REQUIRED_FIELDS = ['skills']
  
      class Meta:
          db_table = 'auth_user'
          verbose_name = _('user')
          verbose_name_plural = _('users')
  
      def get_absolute_url(self):
          return "/users/%s/" % urlquote(self.name)
  
      def get_short_name(self):
          return self.name
  
      def get_full_name(self):
          return self.name
  
      def __str__(self):  # __unicode__ on Python 2
          return self.name
  
      def has_perm(self, perm, obj=None):
          # "Does the user have a specific permission?"
          # # Simplest possible answer: Yes, always
          return True
  
      def has_module_perms(self, applabel):
          # "Does the user have permissions to view the app `app_label`?"
          # Simplest possible answer: Yes, always
          return True
  
      @property
      def is_staff(self):
          # "Is the user a member of staff?"
          # "Simplest possible answer: All admins are staf"
          return self.is_admin
  
  # class Clients(models.Model):
  #     name = models.CharField(max_length=20)
  #     firm_name = models.CharField(max_length=20)
  #     reference = models.CharField(max_length=200)
  #     chu = models.CharField(max_length=200)
  #
  #     def __str__(self):
  #         return self.name
  </code></pre>
  
  <p><strong>admin.py:</strong></p>
  
  <pre><code># from django.contrib import admin
  # from login.models import Freelancer
  from django import forms
  from django.contrib import admin
  from django.contrib.auth.models import Group
  from django.contrib.auth.admin import UserAdmin as BaseUserAdmin
  from django.contrib.auth.forms import ReadOnlyPasswordHashField
  from .models import Freelancer
  
  
  class UserCreationForm(forms.ModelForm):
      """A form for creating new users. Includes all the required
      fields, plus a repeated password."""
      password1 = forms.CharField(label='Password', widget=forms.PasswordInput)
      password2 = forms.CharField(label='Password confirmation', widget=forms.PasswordInput)
  
      class Meta:
          model = Freelancer
          fields = ('name', 'skills')
  
      def clean_password2(self):
          # Check that the two password entries match
          password1 = self.cleaned_data.get("password1")
          password2 = self.cleaned_data.get("password2")
          if password1 and password2 and password1 != password2:
              raise forms.ValidationError("Passwords don't match")
          return password2
  
      def save(self, commit=True):
          # Save the provided password in hashed format
          user = super(UserCreationForm, self).save(commit=False)
          user.set_password(self.cleaned_data["password1"])
          if commit:
              user.save()
          return user
  
  
  class UserChangeForm(forms.ModelForm):
      """A form for updating users. Includes all the fields on
      the user, but replaces the password field with admin's
      password hash display field.
      """
      password = ReadOnlyPasswordHashField()
  
      class Meta:
          model = Freelancer
          fields = ('name', 'password', 'skills','is_admin')
  
      def clean_password(self):
          # Regardless of what the user provides, return the initial value.
          # This is done here, rather than on the field, because the
          # field does not have access to the initial value
          return self.initial["password"]
  
  
  class FreelancerAdmin(BaseUserAdmin):
      # The forms to add and change user instances
      form = UserChangeForm
      add_form = UserCreationForm
  
      # The fields to be used in displaying the User model.
      # These override the definitions on the base UserAdmin
      # that reference specific fields on auth.User.
      list_display = ('name', 'skills', 'is_admin')
      list_filter = ('is_admin',)
      fieldsets = (
          (None, {'fields': ('name', 'password')}),
          ('Personal info', {'fields': ('skills',)}),
          ('Permissions', {'fields': ('is_admin',)}),
      )
      # add_fieldsets is not a standard ModelAdmin attribute. UserAdmin
      # overrides get_fieldsets to use this attribute when creating a user.
      add_fieldsets = (
          (None, {
              'classes': ('wide',),
              'fields': ('name', 'skills', 'password1', 'password2')}
           ),
      )
      search_fields = ('name',)
      ordering = ('name',)
      filter_horizontal = ()
  
  
  # Now register the new UserAdmin...
  admin.site.register(Freelancer, FreelancerAdmin)
  # ... and, since we're not using Django's built-in permissions,
  # unregister the Group model from admin.
  admin.site.unregister(Group)
  </code></pre>