Codeigniter Login Error Solution | Fatal error: Uncaught Error: C:xampphtdocsCodeIgniter.php:184

Fatal error: Uncaught Error: Call to undefined function CodeIgniterlocale_set_default() in
C:xampphtdocstextsystemCodeIgniter.php:184 Stack trace: #0
C:xampphtdocstextsystembootstrap.php(181):CodeIgniterCodeIgniter–initialize() #1C:xampphtdocstextpublicindex.php(36): require(‘C:\xampp\htdocs…’) #2 {main} thrown in C:xampphtdocstextsystemCodeIgniter.php on line 184

other videos

ErrorException #64
Namespace declaration statement has to be the very first statement or after any declare call in the script
https://youtu.be/zVPJzfPEELY