I have a project that has 3 apps: app1, app2 and app3. In the first two apps I had different templates: app1/templates/app1/page.html app2/templates/app2/anotherpage.html And I load them like this: return render(request, "app1/page.html")  It worked perfectly, but now I added app3, and I tried to do the same: app3/templates/app3/config.html but when I return app3/config.html I get the error TemplateDoesNotExist I simply created the app doing python manage.py startapp app3 and copy the files to the folder. I also added the app to the INSTALLED_APPS list. However, this works: app1/templates/app3/config.html app2/templates/app3/config.html Why it's not working now?