i tried replacing my vendor folder to check for a error. but i'm getting

PHP Fatal error: Uncaught Error: Cannot instantiate interface Magento\Framework\App\Config\ConfigSourceInterface in /home/rkhomeappliances/public_html/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php:73

can anyone help me with this ?

1 Answer 1


You can replace vendor directory with the new one.

By the way Its Factory method error , you can resolved this by following below steps.

  1. Remove var/generation , var/cache , var/page_cache directory
  2. run php bin/magento setup:upgrade command
  3. run php bin/magento setup:di:compile command
  4. run php bin/magento setup:static-content:deploy command
  5. run php bin/magento cache:clean and php bin/magento cache:flush command
  • Happy To help keep helping :) Commented Nov 29, 2017 at 12:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.