add missing config for upgrade to 7.6

arches_lingo/urls.py

@@ -6,9 +6,17 @@
 from arches_lingo.views import ConceptTreeView
 
 urlpatterns = [
-    path('', include('arches.urls')),
+    path("", include("arches.urls")),
     path("concept_trees/", ConceptTreeView.as_view(), name="concept_trees"),
 ] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
 
-# if settings.SHOW_LANGUAGE_SWITCH is True:
-#     urlpatterns = i18n_patterns(*urlpatterns)
+# Only handle i18n routing in active project. This will still handle the routes provided by Arches core and Arches applications,
+# but handling i18n routes in multiple places causes application errors.
+if (
+    settings.APP_NAME != "Arches"
+    and settings.APP_NAME not in settings.ARCHES_APPLICATIONS
+):
+    if settings.SHOW_LANGUAGE_SWITCH is True:
+        urlpatterns = i18n_patterns(*urlpatterns)
+
+    urlpatterns.append(path("i18n/", include("django.conf.urls.i18n")))