From d4a59c7504c6b7635f32978a72850f4f82785768 Mon Sep 17 00:00:00 2001
From: Ortwin Pinke <info@dceonline.de>
Date: Fri, 4 Mar 2022 16:26:44 +0100
Subject: [PATCH] fixes PHP 8.1

---
 .../classes/setup/class.pim.setup.plugin.install.php            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/conlite/plugins/pluginmanager/classes/setup/class.pim.setup.plugin.install.php b/conlite/plugins/pluginmanager/classes/setup/class.pim.setup.plugin.install.php
index 64db36b..bd6bc31 100644
--- a/conlite/plugins/pluginmanager/classes/setup/class.pim.setup.plugin.install.php
+++ b/conlite/plugins/pluginmanager/classes/setup/class.pim.setup.plugin.install.php
@@ -212,7 +212,7 @@ class pimSetupPluginInstall extends pimSetupBase {
     private function _addNavMain() {
         $aAttributes = array();
 
-        $iCountNavMain = count(self::$XmlNavMain->nav);
+        $iCountNavMain = (is_countable(self::$XmlNavMain->nav))?count(self::$XmlNavMain->nav):0;
         if ($iCountNavMain > 0) {
             $oNavMainColl = new cApiNavMainCollection();