Magento 2 Error

Question

can anyone tell me what am I doing wrong with this code

<?php
namespace Feedback\Addon\Controller\Index;
use Magento\Framework\App\Action\Context;
use Feedback\Addon\Model\InsertFactory;
class Save extends \Magento\Framework\App\Action\Action
{
 /**
 * @var Test
 */
 protected $_test;
 protected $_storeManager;
 public function __construct(
 Context $context,
 array $data = [],
 \Magento\Store\Model\StoreManagerInterface $storeManager, 
 InsertFactory $test
 ) {
 $this->_storeManager = $storeManager;
 $this->_test = $test;
 parent::__construct($context);
 }
 public function execute()
 {
 $post = $this->getRequest()->getPostValue();
 $test = $this->_test->create();
 $data=array(
 'first_name'=> $post['first_name'],
 'last_name'=> $post['last_name'],
 'email' => $post['email'],
 'mobile_no' => $post['mobile_no'],
 'feedback_content' => $post['feedback_content']
 ); 
 $test->setData($data);
 if($test->save())
 {
 $this->messageManager->addSuccessMessage(__('You saved the data.'));
 $templateOptions = array('area' => \Magento\Framework\App\Area::AREA_FRONTEND, 'store' => $this->storeManager->getStore()->getId());
 $templateVars = array(
 'store' => $this->storeManager->getStore(),
 'customer_name' => 'John Doe',
 'message' => 'Hello!!.'
 );
 $from = array('email' => "[email protected]", 'name' => 'Name of Sender');
 $this->inlineTranslation->suspend();
 $to = array('[email protected]');
 $storeScope = \Magento\Store\Model\ScopeInterface::SCOPE_STORE;
 $templateId = $this->scopeConfig->getValue ( 'feedback/custom/email_template', \Magento\Store\Model\ScopeInterface::SCOPE_STORE, $storeId );
 $transport = $this->_transportBuilder->setTemplateIdentifier($templateId, $storeScope)->setTemplateOptions($templateOptions)
 ->setTemplateVars($templateVars)
 ->setFrom($from)
 ->addTo($to)
 ->getTransport();
 $transport->sendMessage();
 $this->messageManager->addSuccess(__('Mail Sent Successfully'));
 $this->inlineTranslation->resume();
 }
 else
 {
 $this->messageManager->addErrorMessage(__('Data was not saved.'));
 }
 $resultRedirect = $this->resultRedirectFactory->create();
 $resultRedirect->setPath('*/*/');
 return $resultRedirect;
 }
}

I am trying to sending mail to the user after saving data but this is generated this error

Fatal error: Uncaught TypeError: Argument 3 passed to Feedback\Addon\Controller\Index\Save\Interceptor::__construct() must be of the type array, null given, called in /var/www/html/nuluv/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php on line 111 and defined in /var/www/html/nuluv/generated/code/Feedback/Addon/Controller/Index/Save/Interceptor.php:11 Stack trace: #0 /var/www/html/nuluv/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(111): Feedback\Addon\Controller\Index\Save\Interceptor->__construct(Object(Magento\Framework\App\Action\Context), Object(Magento\Store\Model\StoreManager), NULL, Object(Feedback\Addon\Model\InsertFactory)) #1 /var/www/html/nuluv/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Feedback\Addon\...', Array) #2 /var/www/html/nuluv/vendor/magento/framework/ObjectManager/ObjectManager.php(56): Magento\Framework\ObjectManager\Factory\Compiled->create('Feedback\Addon\...', in /var/www/html/nuluv/generated/code/Feedback/Addon/Controller/Index/Save/Interceptor.php on line 11

• Nauman m. Mansuri: Try to run following command & then check : php bin/magento s:up && php bin/magento s:di:c

Answer 1

make your constructor receive the mandatory parameters before the optional ones:

public function __construct(
 Context $context,
 \Magento\Store\Model\StoreManagerInterface $storeManager, 
 InsertFactory $test,
 array $data = []
) {
 $this->_storeManager = $storeManager;
 $this->_test = $test;
 parent::__construct($context, $data);
}

and clear the contents of folder generated/code.

• Akash Agrawal: hi thanks for the help! I tired your code buy its generated error - Extra parameters passed to parent construct: $data. File: /var/www/html/nuluv/app/code/Feedback/Addon/Controller/Index/Save.php Total Errors Count: 1
• Marius: then remove $data from parent::__construct($context, $data)