Teach me how to program

PHP Code:

A PHP Error was encountered

Severity: Notice

Message: Only variable references should be returned by reference

Filename: core/Common.php

Line Number: 257
A PHP Error was encountered

Severity: Warning

Message: require_once(C:/xampp/htdocs/gsa/system/database/drivers/mysqli_connect/mysqli_connect_driver.php): failed to open stream: No such file or directory

Filename: database/DB.php

Line Number: 140

Fatal error: require_once(): Failed opening required 'C:/xampp/htdocs/gsa/system/database/drivers/mysqli_connect/mysqli_connect_driver.php' (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\gsa\system\database\DB.php on line 140 


OKEY..!!
Send me your Whole Source code with database i will fix them.


OR
other solution is delete your system folder from your project and download latest CI3 from www.codeigniter.com and copy only system folder and update in your project.
Should work. !!

Web Developer