/ login /组中匹配查询不存在

Question

我正在尝试解决与该错误有关的一个问题

  

“组匹配查询不存在。”

但是无处可去，解决问题变得更加棘手，需要帮助！？

我已经在Settings.py中尝试过SITE_ID = 1，但是什么也没发生

Views.py：=

from django.shortcuts import render
from django.views.generic import TemplateView
from django.http import HttpResponseRedirect
from django.contrib import auth
from django.template.context_processors import csrf
from django.contrib import messages

# Create your views here.
def user_login(request):
    if request.user.is_authenticated:
        messages.add_message(request, messages.INFO, 'You are already 
Logged in.')
        return HttpResponseRedirect('/home')
    else:
        c = {}
        c.update(csrf(request))
        return render(request, 'loginmodule/login.html',{})

context_processors.py：=

from django.contrib.auth.models import Group

def hasGroup(user, groupName):
    group = Group.objects.get(name=groupName)
    return True if group in user.groups.all() else False

def menu_processor(request):
    menu = {}
    user = request.user
    if hasGroup(user, 'Consultant'):
        menu['Appointments'] = '/appointment