Fixed #30318 -- Added check for importability of arguments of custom error handler views.

Thanks to Jon on Stack Overflow for reporting the issue.

2 files changed, 5 insertions, 0 deletions

diff --git a/docs/ref/checks.txt b/docs/ref/checks.txt
index 2944ad7544..1f0601ab5d 100644
--- a/docs/ref/checks.txt
+++ b/docs/ref/checks.txt
@@ -473,6 +473,8 @@ The following checks are performed on your URL configuration:
   end with a slash.
 * **urls.E007**: The custom ``handlerXXX`` view ``'path.to.view'`` does not
   take the correct number of arguments (…).
+* **urls.E008**: The custom ``handlerXXX`` view ``'path.to.view'`` could not be
+  imported.
 
 ``contrib`` app checks
 ======================
diff --git a/docs/releases/2.2.1.txt b/docs/releases/2.2.1.txt
index 48cbfb3a8f..0ca76bcbf8 100644
--- a/docs/releases/2.2.1.txt
+++ b/docs/releases/2.2.1.txt
@@ -46,3 +46,6 @@ Bugfixes
 * Fixed a regression in Django 2.2 where
   :class:`~django.contrib.postgres.search.SearchVector` generates SQL that is
   not indexable (:ticket:`30385`).
+
+* Fixed a regression in Django 2.2 that caused an exception to be raised when
+  a custom error handler could not be imported (:ticket:`30318`).