Failed to open stream: Permission denied

[rogergerberquirino93502]

Hi, after running command "bin/magento setup:db-declaration:generate-whitelist" I'm getting the following error. Can someone kindly help in resolving thism.

Warning: file_put_contents(/var/www/html/app/code/Mtest/Blog/etc/db_schema_whitelist.json): Failed to open stream: Permission denied in /var/www/html/vendor/magento/framework/Setup/JsonPersistor.php on line 22

### Resolved

[AlekGDEV]

How do you resolve this problem? plz