[Skip to main content](#vessel-content) # mojo\_redirect ## - **[bvitl](/forum/user/38376-bvitl "View bvitl's Profile")** - [![bvitl's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/gallery/fish.gif)](/forum/user/38376-bvitl "View bvitl's Profile") Topic Author - [ Offline](/forum/user/38376-bvitl) Less More - Posts: 9 - Thank you received: 1 - - - 2 years 6 months ago [\#360434](#360434) by [bvitl](/forum/user/38376-bvitl "View bvitl's Profile") *[mojo\_redirect](/forum/30-integrations/908055-mojo-redirect#360434 "-- HikaShop version -- : 5.0.4 -- Joomla version -- : 4.4.4 -- PHP version -- : 8.1 When click on "System" in Admin panel in eror log php we have: [19-Apr-2024 14:45:42] WARNING: [pool www] child 417442 said into stderr: "NOTICE: PHP message: PHP Warning: Trying to access array offset on value of type null in /var/www/site/administrator/components/com_installer/src/Model/DatabaseModel.php on line 180" I found a problem with pkg mojo_redirect. If you create a folder sql/updates in the /plugins/system/mijo_redirect folder then a WARNING is not logged.")* was created by *[bvitl](/forum/user/38376-bvitl "View bvitl's Profile")* -- HikaShop version -- : 5.0.4 -- Joomla version -- : 4.4.4 -- PHP version -- : 8.1 When click on "System" in Admin panel in eror log php we have: [19-Apr-2024 14:45:42] WARNING: [pool www] child 417442 said into stderr: "NOTICE: PHP message: PHP Warning: Trying to access array offset on value of type null in /var/www/site/administrator/components/com_installer/src/Model/DatabaseModel.php on line 180" I found a problem with pkg mojo_redirect. If you create a folder sql/updates in the /plugins/system/mijo_redirect folder then a WARNING is not logged. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzMwLWludGVncmF0aW9ucy85MDgwNTUtbW9qby1yZWRpcmVjdD90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[nicolas](/forum/user/63-nicolas "View nicolas's Profile")** - [![nicolas's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar63.png)](/forum/user/63-nicolas "View nicolas's Profile") - [ Away](/forum/user/63-nicolas) Less More - Posts: 86290 - Thank you received: 14268 - - 2 years 6 months ago - 2 years 6 months ago [\#360437](#360437) by [nicolas](/forum/user/63-nicolas "View nicolas's Profile") Replied by *[nicolas](/forum/user/63-nicolas "View nicolas's Profile")* on topic *[mojo\_redirect](/forum/30-integrations/908055-mojo-redirect#360437 "-- HikaShop version -- : 5.0.4 -- Joomla version -- : 4.4.4 -- PHP version -- : 8.1 When click on "System" in Admin panel in eror log php we have: [19-Apr-2024 14:45:42] WARNING: [pool www] child 417442 said into stderr: "NOTICE: PHP message: PHP Warning: Trying to access array offset on value of type null in /var/www/site/administrator/components/com_installer/src/Model/DatabaseModel.php on line 180" I found a problem with pkg mojo_redirect. If you create a folder sql/updates in the /plugins/system/mijo_redirect folder then a WARNING is not logged.")* Hi, Thank you for you feedback. The problem is actually in the administrator/components/com_installer/src/Model/DatabaseModel.php file. The code Code: $folderTmp = (string) $installationXML->update->schemas->schemapath[0]; assumes that any extension installed has either a sql/updates folder or a schemas node in the XML file of the extension. This mijo_redirect plugin adds nothing to the database, so it doesn't requires a sql/updates folder nor a schemas node in the XML file. The Joomla documentation on how to create a plugin for Joomla 4 also doesn't mention anything about this: [ docs.joomla.org/J4.x:Creating\_a\_Plugin\_for\_Joomla](https://docs.joomla.org/J4.x:Creating_a_Plugin_for_Joomla) So it's actually the file administrator/components/com_installer/src/Model/DatabaseModel.php which needs to be modified. The line Code: if ($installationXML !== null) { just before the line of the notice should be changed to something like this : Code: if ($installationXML !== null && isset($installationXML->update->schemas->schemapath)) { I would recommend reporting the issue on Joomla's github: [ github.com/joomla/joomla-cms/issues](https://github.com/joomla/joomla-cms/issues) Last edit: 2 years 6 months ago by [nicolas](/forum/user/63-nicolas "View nicolas's Profile"). The following user(s) said Thank You: [bvitl](/forum/user/38376-bvitl "View bvitl's Profile") Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzMwLWludGVncmF0aW9ucy85MDgwNTUtbW9qby1yZWRpcmVjdD90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[bvitl](/forum/user/38376-bvitl "View bvitl's Profile")** - [![bvitl's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/gallery/fish.gif)](/forum/user/38376-bvitl "View bvitl's Profile") Topic Author - [ Offline](/forum/user/38376-bvitl) Less More - Posts: 9 - Thank you received: 1 - - - 2 years 6 months ago [\#360447](#360447) by [bvitl](/forum/user/38376-bvitl "View bvitl's Profile") Replied by *[bvitl](/forum/user/38376-bvitl "View bvitl's Profile")* on topic *[mojo\_redirect](/forum/30-integrations/908055-mojo-redirect#360447 "-- HikaShop version -- : 5.0.4 -- Joomla version -- : 4.4.4 -- PHP version -- : 8.1 When click on "System" in Admin panel in eror log php we have: [19-Apr-2024 14:45:42] WARNING: [pool www] child 417442 said into stderr: "NOTICE: PHP message: PHP Warning: Trying to access array offset on value of type null in /var/www/site/administrator/components/com_installer/src/Model/DatabaseModel.php on line 180" I found a problem with pkg mojo_redirect. If you create a folder sql/updates in the /plugins/system/mijo_redirect folder then a WARNING is not logged.")* I now uninstalled the plugin and remove folders sql/updates and then reinstalled it. WARNING is not logged also. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzMwLWludGVncmF0aW9ucy85MDgwNTUtbW9qby1yZWRpcmVjdD90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. 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