Using the URLconf defined in Webwork.urls, Django tried these URL patterns, in this order: The empty path didn’t match any of these

I am getting this error can anyone help me Request Method: GET Using the URLconf defined in Webwork.urls, Django tried these URL patterns, in this order:

admin/ ^ ^department/$ ^ ^department/([0-9]+)$ ^ ^employee/$ ^ ^employee/([0-9]+)$ The empty path didn’t match any of these.

here is my code:

from django.contrib import admin
from django.urls import path
from django.conf.urls import url,include    
urlpatterns = [
    path('admin/', admin.site.urls),
    url(r'^',include('EmpApp.urls'))
]

and

from django.conf.urls import url
from EmpApp import views
urlpatterns=[
    url(r'^department/$',views.departmentApi),
    url(r'^department/([0-9]+)$',views.departmentApi),
    url(r'^employee/$',views.employeeApi),
    url(r'^employee/([0-9]+)$',views.employeeApi),
    
]