Call to a member function setActive() on boolean

Question

I encountered the following issue when i was trying to install a module. When I try to access the admin panel on my magento I get:

Call to a member function setActive() on boolean in C:\xampp\htdocs\project\vendor\magento\module-backend\Model\View\Result\Page.php on line 27

I disabled all third party and custom modules, I compiled the code but I still get this error.

EDIT: I did a var_dump($itemId) just below the line where the error is and the $itemid is 'Magento_Backend::dashboard'.

EDIT 2: The error is because the line "$this->layout->getBlock('menu');" above returns false. I can't find though why this is happening

Answer 1

I will try this to solve problem if setActive() error() arrived after setup:di:compile then becauese of session is destroy.

So go to Magento directory and then delete file generated by di:compile is path :-

magento\generated\metadata\global.php delete this file then after refersh your page.

This is temporary solution for this error in local server.

Answer 2

I had the same situation in the development of own modules (I created/changed layout files for grid in adminhtml). Try to clean cache and switch to development mode:

$ ./bin/magento cache:clean
$ ./bin/magento deploy:mode:set developer

I suppose some cached stuff is not cleaned on cache:clean & setup:di:compile in production mode. You can switch back to production mode back if error will gone in development mode.

Answer 3

Do try to remove pub/static and var/cache then run the below commands

php bin/magento setup:upgrade

php bin/magento setup:static-content:deploy

After that it will work

Answer 4

The problem is that the layout xml of this controller path is not loading properly.

Check that the name and the namespace of the controller is matching with the layout file name. Take care of the case sensitivity.

For example:

• custom_module_admin_customcontroller_action.xml
• namespace Custom\Module\Controller\Adminhtml\Customcontroller and not CustomController

Answer 5

When you do getBlock() it returns the block or it returns false if it can not find it. You need to have a check in place something like :

$block = $layout->getBlock('name);
If ($block){
//execute the rest
}

The reason why it can not find your block is something i would need more details for. If you are using a layout xml file be sure that the block and the class of the block does not have any errors.

Answer 6

Temporary Fix : Remove "generated\metadata\global.php" and it will fix.

Permanent Fix : The problem is that the layout xml of this controller path is not loading properly.

Check that the name and the namespace of the controller is matching with the layout file name. Take care of the case sensitivity.

For example:

custom_module_admin_customcontroller_action.xml Check the namespace of the Controller Properly

Custom\Module\Controller\Adminhtml\Customcontroller

and not

Custom\Module\Controller\Adminhtml\CustomController