tested

rowsandall_app/urls.py

@@ -34,6 +34,8 @@ handler403 = 'rowers.views.error403_view'
 handler404 = 'rowers.views.error404_view'
 handler500 = 'rowers.views.error500_view'
 
+import django.views.i18n
+
 
 urlpatterns = [
     re_path('^', include('django.contrib.auth.urls')),    
@@ -86,6 +88,16 @@ urlpatterns += [
 #    re_path(r'^jsi18n/', django.views.i18n.javascript_catalog,name='jsi18n'),
     ]
 
+js_info_dict = {
+    'packages': ('recurrence', ),
+}
+
+# jsi18n can be anything you like here
+urlpatterns += [
+    path('jsi18n/', django.views.i18n.JavaScriptCatalog.as_view(), name="javascript-catalog"),
+]
+# monkey patch workaround for bug in recurrence library
+django.views.i18n.javascript_catalog = None
 
 if settings.DEBUG:
     import debug_toolbar