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I am getting this error when I click on stores->configuration

Notice: Undefined index: id in D:\xampp\htdocs\tork\vendor\magento\module-config\Model\Config\Structure\Element\Iterator.php on line 63

I tried to disable custom modules which has config section.Still get the same error.

Is there any way to check from which module I am getting this issue?

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  • Did you install which module ? Mar 27 '18 at 10:36
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I'll recommend you to use the xDebug to easily detect which element has no id:

example of xdebug

In case you are working on the remote server on which you can not install xDebug you can use the var_dump() with condition like:

if (count($elements)) {
    $lastElement = end($elements);
    if (empty($lastElement['id'])) {
        var_dump($elements);
        var_dump($lastElement);
    }
    $this->_lastId = $lastElement['id'];
}

in the magento/module-config/Model/Config/Structure/Element/Iterator.php (inside the setElements() method). Then using indirect signs you be able to detect which element from the config tree causes problems.

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