Fatal Error Layout.php on Frontend after staging environment setup

Question

I have recently created a staging environment. Back-end works fine. But when I load my staging site I get the following error:

Fatal error: Class 'Mage_Wishlist_Block_Customer_Sidebar' not found in /html/app/code/core/Mage/Core/Model/Layout.php on line 491

I have tried to fix it by clearing all kinds of Caches, and updating layout.php file (app/code/core/Mage/Core/Model/Layout.php):

$out .= $this->getBlock($callback[0])->$callback[1]();

replaced with this one.

$out .= $this->getBlock($callback[0])->{$callback[1]}();

It didn't work.

Can you please help me resolve this, please?

make sure the file app/code/core/Mage/Wishlist/Block/Customer/Sidebar.php exists and it is readable. — Marius, Jan 31, 2017 at 8:37
@Marius Wow this really helped, finally my staging site is up and running, however, it has different theme colors. I believe I can fix those from the theme configuration settings. — Faheem Ahmad, Feb 2, 2017 at 4:42

Murtuza Zabuawala · Accepted Answer · 2017-02-03 06:47:10Z

1

There is only two scenario when you have this issue

1st as Marius said check the class file exist : app/code/core/Mage/Wishlist/Block/Customer/Sidebar.php

2Nd : please check Mage_Whistlist module is enable in system->configuration->Advanced

answered Feb 3, 2017 at 6:47

Murtuza Zabuawala

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