.html {% for c in categories %}<li><a href="{{c.get_absolute_url}}" class="{% if current_category.slug == c.slug %}active{% endif %}">{{c.name}}</a></li>{% endfor %} 을 이렇게 넣고... 서버 돌렸을 때 해당 페이지에서 계속 아래와 같이 뜹니다. NoReverseMatch at /정보/학습후기/ Reverse for 'page_category' not found. 'page_category' is not a valid view function or pattern name.이라고 뜹니다..ㅠ오류가 발생한 부분은 보니 여기인데...<a href="{{c.get_absolute_url}}" class="{% if current_category.slug == c.slug %}active{% endif %}">{{c.name}}</a> models.py class Category(models.Model): city = models.CharField(max_length=20, db_index=True) name = models.CharField(max_length=20, db_index=True) phoneNumberRegex = RegexValidator(regex=r'^01([0|1|6|7|8|9]?)-?([0-9]{3,4})-?([0-9]{4})$') phone = models.CharField(validators=[phoneNumberRegex], max_length=13, unique=True) class_date = models.IntegerField(blank=True) slug = models.SlugField(max_length=20, db_index=True, unique=True, allow_unicode=True) class Meta: ordering = ['name'] verbose_name = 'category' verbose_name_plural = 'categories' def __str__(self): return self.name def get_absolute_url(self): return reverse('page44:page_category', args=[self.slug]) views.py from django.shortcuts import render, get_object_or_404from .models import *def page4_in_category(request, category_slug=None): current_category = None categories = Category.objects.all() page4 = Page4.objects.all() if category_slug: current_category = get_object_or_404(Category, slug=category_slug) page4 = page4.filter(category=current_category) return render(request, 'page4/page4.html', { 'current_category': current_category, 'categories': categories, 'page4': page4, }) urls.py from django.urls import pathfrom .views import *app_name = 'page44'urlpatterns = [ path('학습후기/', page4_in_category, name='학습후기'), path('<slug:category_slug>', page4_in_category, name='page_category'), path('고객센터/', page5Views, name='고객센터'),] app_namename설정 했고.. get_absolute_url부분에서 reverse 부분도 딱히 문제가 없는데.. 어디가 문제일까요??admin에서 값은 넣었습니다! ㅠㅠ