When I have installed Magento 2.3 it's working fine. I have added categories, subcategories, products successfully. But Accidentally its showing error as below :

Fatal error: Uncaught Error: Cannot access property ReflectionParameter::$name in F:\xampp\htdocs\magento\vendor\magento\framework\Code\Reader\ClassReader.php:25 Stack trace: #0 F:\xampp\htdocs\magento\vendor\magento\framework\Code\Reader\ClassReader.php(25): ReflectionFunctionAbstract->getParameters() #1 F:\xampp\htdocs\magento\vendor\magento\framework\ObjectManager\Definition\Runtime.php(49): Magento\Framework\Code\Reader\ClassReader->getConstructor('Magento\Framewo...') #2 F:\xampp\htdocs\magento\vendor\magento\framework\ObjectManager\Factory\Dynamic\Developer.php(48): Magento\Framework\ObjectManager\Definition\Runtime->getParameters('Magento\Framewo...') #3 F:\xampp\htdocs\magento\vendor\magento\framework\ObjectManager\ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create('Magento\Framewo...') #4 F:\xampp\htdocs\magento\vendor\magento\framework\App\ObjectManager\Environment\Developer.php(70): Magento\Framework\ObjectManager\ObjectManager->get('Magento\Framewo...') #5 F:\xampp\ht in F:\xampp\htdocs\magento\vendor\magento\framework\Code\Reader\ClassReader.php on line 25

Please help me what can I do to solve it? PHP version : 7.1.28

Note: I'm new to Magento. Today I have started to learn it.

  • Just i have tried to restart Xampp and run again magento storefront then showing error as below: There has been an error processing your request Exception printing is disabled by default for security reasons. Error log record number: 959719884189
    – Rakhi
    Commented Dec 9, 2019 at 12:33
  • execute command " rm -rf generated/* var/view_preprocessed/* " then refresh the page Commented Dec 9, 2019 at 12:34
  • copy the error record number and go to var/log/report find the error file with the same number and check the error. Commented Dec 9, 2019 at 12:36
  • thank you so much @AnandOntigeri . It's working now
    – Rakhi
    Commented Dec 9, 2019 at 12:36
  • is that working? Commented Dec 9, 2019 at 12:36

1 Answer 1


execute command "rm -rf generated/* var/view_preprocessed/*" and refresh the page.

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