DjangoのURLページが見つかりません

そのため、自分のWebサイト用に作成したプロジェクト投稿にアクセスしようとしましたが、クリックするたびにURLが見つかりません。理由はわかりません。

私のコードは以下の通りです：

mywebsite / urls.py

from django.contrib import admin
from django.urls import re_path, include
from django.conf import settings
from django.conf.urls.static import static

#re_path(r'^admin/', admin.site.urls),
urlpatterns = [
    re_path(r'^admin/', admin.site.urls),
    re_path(r'^', include('home.urls')),
    re_path(r'^projects/', include('projects.urls', namespace="create_post")),
    re_path(r'^contact/', include('contact.urls')),
]

projects / urls.py

from django.urls import re_path, include
from . import views

# urls for projects page
app_name = 'create_post'

urlpatterns = [
    re_path(r'^$', views.retrieve_projects, name="retrieve_projects"),
    #re_path(r'^create/$', views.CreateProjectsView.as_view(), name="create_projects"),
    re_path(r'^create/$', views.CreateProjectsView.as_view(), name="create_projects"),
    re_path(r'^(?P<slug>[\w-]+)/$', views.details_of_project, name="details_of_project"),
    re_path(r'^(?P<slug>[\w-]+)/update/$', views.update_projects, name="update_projects"),
    re_path(r'^(?P<slug>[\w-]+)/delete/$', views.delete_projects, name="delete_projects"),
]

# To make images work
if settings.DEBUG:
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

projects / views.py

# Function to retrieve all different projects
def retrieve_projects(request):
    # Retrieves objects based on latest publish date
    projects_list = Projects.objects.all().order_by("-publish_date")
    context = {
        'projects_list': projects_list,
    }
    return render(request, 'projects/projects.html', context)

projects / projects.html

<h1>asdasdasdasdasdasdas</h1>
{% if projects_list %}
<ul>
    {% for project in projects_list %}
    <h2><a href="/{{project.slug}}/">{{project.title}}</a></h2>
    <h2>{{project.description}}</h2>
    <h2>{{ project.publish_date }}</h2>

    {% endfor %}
</ul>
{% endif %}

エラーはページが見つかりませんを返します