An Error Was Encountered In order to use the Session class you are required to set an encryption key in your config file.

pagi ini saya menemukan error maklum saya baru belajar codeinteger

An Error Was Encountered

In order to use the Session class you are required to set an encryption key in your config file.

setelah saya googlening teryata error terdapat di 

buka file aplication/ config.php

cari ini 

$config['encryption_key'] = '';

terus tinggal tambahkan 

$config['encryption_key'] = 'disini apa sajah ';

yes berhasil keprok tangan pemirsa :DD