Undefined property error when calling a library function

Question

I have two controllers in user folder. One is user and othe one is profile. And also have a library called category_detail in category folder. when I call $this->category_detail->get_category_detail(2); in user controller it works well. But when I do same call in profile controller it gives an error. In both file I have loaded category_detail library in constructor. error is follows.

Severity: Notice

Message: Undefined property: Profile::$category_detail

Filename: user/profile.php

Answer 1

check this link

http://ellislab.com/codeigniter/user-guide/general/creating_libraries.html

you have to put your library file in application/libraries folder