By divyeshvk on

i am upgrading my drupal4.7 site to 5.1

when i make change in block module i.e.

when i am replacing module_exist() to module_exists() it shows following fatal error

Fatal error: Call to undefined function module_exists() in C:\Program Files\xampp\htdocs\drupal-4.7.7\modules\block.module on line 219

so please send me solution on this error