Fatal error: Class '' not found in CodeIgniter

Screen Got stuck eventually with this error during CodeIgniter development. Fatal error: Class '' not found in C:\Server\xampp56\htdocs\alf\classified\system\database\drivers\mysqli\mysqli_result.php on line 183

A PHP Error was encountered

Severity: Error Message: Class '' not found 

Filename: mysqli/mysqli_result.php 

Line Number: 183 

Backtrace:

[caption id="attachment_322" align="aligncenter" width="700"] Fatal error: Class ” not found in CodeIgniter[/caption]

How to Solve this error: 

Make sure you are not passing empty string to ->result(); method

public function getAll($type=''){

     return $this->db->get("$this->table")->result($type);

}

In the above code $type parameter is optional but when you leave it like this it send and empty thing to codeIgniter database class which is NOT handled by core framework.  It seems a bug in codeIgniter.  So always use your database functions like this: $this->db->get("table_name")->result(); // leave it empty for objects; $this->db->get("table_name")->result("array"); // for array of rows; I am not sure if this helps someone else, but it fixed my problem as core searches for a class based on parameter passed in ->result() method.

Permanent Solution:

https://github.com/mistersuraj/CodeIgniter/commit/d30228df0ccc6fda0f90808abb966df3cb5be566?diff=unified