Argument #2 ($haystack) must be of type array, null given in in_array()

https://www.drupal.org/project/feeds_para_mapper/releases/8.x-1.1 →

Automatically closed - issue fixed for 2 weeks with no activity.

I have still this error.

TypeError: in_array(): Argument #2 ($haystack) must be of type array, bool given in in_array() (Line 24 in /modules/contrib/access_unpublished/src/AccessUnpublished.php).

This comes up only if I install feeds paragraphs mapper.

@demonde ,
Try:
composer require drupal/feeds_para_mapper:1.1
drush updb -y;drush cr;

I installed the current version from the start.

@demonde, ton erreur viens d'un autre module , ça dit clairement "access_unpublished"

Essaye ceci:

diff --git a/src/AccessUnpublished.php b/src/AccessUnpublished.php
index ea2ea37..dfca79e 100644
--- a/src/AccessUnpublished.php
+++ b/src/AccessUnpublished.php
@@ -20,6 +20,10 @@ class AccessUnpublished {
    *   TRUE if it can be used.
    */
   public static function applicableEntityType(EntityTypeInterface $entityType) {
+    if (!is_array(class_implements($entityType->getClass()))) {
+      // Not applicable.
+      return FALSE;
+    }
     if (
       in_array(EntityPublishedInterface::class, class_implements($entityType->getClass())) &&
       $entityType->hasLinkTemplate('canonical')

This does not help. I donnot get an error message but the mapping page will load eternally if the feed contains a paragraph field and paragraphs mapper is installed.

I also get this error but not sure if this is related.

Warning: Undefined array key "allowed_extensions" in Drupal\feeds\Feeds\Fetcher\Form\UploadFetcherForm->validateConfigurationForm()

@demonde, a quick google found the solution in less than 30 seconds
Here's the very funny let me google that for you demo.
https://letmegooglethat.com/?q=Warning%3A+Undefined+array+key+%22allowed...

There is an RTBC patch available for the bug you're seeing.
🐛 Undefined Index: allowed_extensions AJAX error when creating feed types. Fixed

Thanks, I am busy this week but I will test this solution as soon as possible.