I'm new to Django 2.0 and i'm getting this error when visiting my profile page view. It's working with urls like path('users/<int:id>') but i wanted to urls be like path('<username>'). Not sure what exactly is the problem. I hope you can help.

#views.py
class ProfileView(views.LoginRequiredMixin, generic.DetailView):model = models.Usertemplate_name = 'accounts/profile.html'#urls.py
urlpatterns = [path('', HomePageView.as_view(), name='home'),path('signup', SignUpView.as_view(), name='signup'),path('login', LoginView.as_view(), name='login'),path('logout', logout_view, name='logout'),path('<username>', ProfileView.as_view(), name='profile')
]#base.html
<ul class="dropdown-menu"><li><a href="{% url 'accounts:profile' user.username %}">View Profile</a></li><li><a href="#">Edit Profile</a></li>
</ul>

You need to tell your view to use username as the lookup field. You could either do this by defining slug_field and slug_url_kwarg on the model, or by overriding get_object. For example:

class ProfileView(views.LoginRequiredMixin, generic.DetailView):model = models.Usertemplate_name = 'accounts/profile.html'slug_field = 'username'slug_url_kwarg = 'username'

The first of these determines what field to use in the model lookup; the second determines what variable to use from the URL pattern.