I am unable to see any type of error in magento2. i am implementing custom payment gateway but when i add a dropdown list in backend admin panel of magento2 At that time its shows blank page and when i console it shows only 500 internal server error.

  • Have you checked the logs? It's probably invalid XML configuration. Validate your files against the provided schema
    – scrowler
    Dec 21, 2015 at 10:32
  • from where i can check the logs Dec 21, 2015 at 10:49
  • in path : ------- /var/www/html/magento/var/log Dec 21, 2015 at 10:50
  • Possible duplicate : magento.stackexchange.com/questions/62405/…
    – Abdul
    Dec 21, 2015 at 13:12

2 Answers 2


Go inside root pub/errors folder,

Just copy local.xml.sample to local.xml

Also you can enable display_errors from app/bootstrap.php file. At line no. 11 remove # from the start of the line.

Now the final statement displays as ini_set('display_errors', 1);

  • How we can do the same things at Magento cloud environment as they are write protected. Oct 26, 2018 at 6:39

The techniques provided by magestore to debug https://www.magestore.com/magento-2-tutorial/debug-technique-in-magento-2/

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