[#33862] - [3.9] Discover install error: Call to a member function children() on null
- Closed
- 14 May 2021
- Medium
- Build: staging
- # 33862
Steps to reproduce the issue
- discover a module for installation by clicking on extensions->Manage->discover
- select the extension and click install
Expected result
Module should install
Actual result
Get the error below
An error has occurred.
0 Call to a member function children() on null
C:\xampp\htdocs\libraries\src\Installer\Adapter\ModuleAdapter.php:161
Call stack
| Function | Location
1 | () | JROOT\libraries\src\Installer\Adapter\ModuleAdapter.php:161
2 | Joomla\CMS\Installer\Adapter\ModuleAdapter->getElement() | JROOT\libraries\src\Installer\InstallerAdapter.php:339
3 | Joomla\CMS\Installer\InstallerAdapter->discover_install() | JROOT\libraries\src\Installer\Installer.php:633
4 | Joomla\CMS\Installer\Installer->discover_install() | JROOT\administrator\components\com_installer\models\discover.php:202
5 | InstallerModelDiscover->discover_install() | JROOT\administrator\components\com_installer\controllers\discover.php:46
6 | InstallerControllerDiscover->install() | JROOT\libraries\src\MVC\Controller\BaseController.php:710
7 | Joomla\CMS\MVC\Controller\BaseController->execute() | JROOT\administrator\components\com_installer\installer.php:19
8 | require_once() | JROOT\libraries\src\Component\ComponentHelper.php:402
9 | Joomla\CMS\Component\ComponentHelper::executeComponent() | JROOT\libraries\src\Component\ComponentHelper.php:377
10 | Joomla\CMS\Component\ComponentHelper::renderComponent() | JROOT\libraries\src\Application\AdministratorApplication.php:101
11 | Joomla\CMS\Application\AdministratorApplication->dispatch() | JROOT\libraries\src\Application\AdministratorApplication.php:159
12 | Joomla\CMS\Application\AdministratorApplication->doExecute() | JROOT\libraries\src\Application\CMSApplication.php:203
13 | Joomla\CMS\Application\CMSApplication->execute() | JROOT\administrator\index.php:51
System information (as much as possible)
System Information| Setting | Value |
|---|---|
| PHP Built On | Windows NT DESKTOP-SAIL3J8 10.0 build 19041 (Windows 10) AMD64 |
| Database Type | mysql |
| Database Version | 5.5.5-10.1.26-MariaDB |
| Database Collation | utf8_general_ci |
| Database Connection Collation | utf8mb4_general_ci |
| PHP Version | 7.3.13 |
| Web Server | Apache/2.4.41 (Win64) OpenSSL/1.1.1c PHP/7.3.13 |
| WebServer to PHP Interface | apache2handler |
| Joomla! Version | Joomla! 3.9.26 Stable [ Amani ] 13-April-2021 15:00 GMT |
| Joomla! Platform Version | Joomla Platform 13.1.0 Stable [ Curiosity ] 24-Apr-2013 00:00 GMT |
| User Agent | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.72 Safari/537.36 |
Additional comments
joomla-cms-bot
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New profile pic - who dis?
@PhilETaylor Its 2 years older than the previous one, but closer to reality since I don't shave anymore.
Im guessing this file had an invalid XML with no files defined
Please post the full XML file for the module here.
Its 2 years older than the previous one, but closer to reality since I don't shave anymore.
I have to keep updating mine to make me look balder and fatter every 6 months ;-)
@pranaymirchandani Which module did make these problems?
Hi Richard,
a custom module
<?xml version="1.0" encoding="utf-8"?> <extention type="module" version="3.9" client="site" method="upgrade"> <name>mod_mwprofile_search_filters</name> <files> <filename module="mod_mwprofile_search_filters">mod_mwprofile_search_filters.php</filename> </files> </extention>
Fixed it my bad this is where the problem was i misspelled extension as extention
same happens with that XML in Joomal4
| Status | New | ⇒ | Closed |
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2021-05-14 10:22:30 |
| Closed_By | ⇒ | pranaymirchandani |
caused by a typo sorry
extention doesnt look right ;-)
This probably should still be resolved, also the admin template is destroyed by the error :-(
@pranaymirchandani Which module did make these problems?