Get Free Audit

Enabling Error Output in Prestashop

Dec 1, 2014

3971 Artem Demidov

Enabling Error Output in Prestashop

Prestаshоp has a developer mode (dev mode). This mode is needed for outputting debugging information such as errors, warnings etc.  This mode can be useful if the user applies some changes into Prestаshоp, for example installs a new module or theme, and after that some problems in the store performance begin to appear. In such cases, in order to nail down the cause of the problem, the store is switched into the developer mode.

Before enabling the developer mode you should disable Smarty cache and CCC (Combine, Compress and Cache). Smarty Cache  is disabled in BackOffice / Advanced Parameters / Performance / Smarty.

1 output

CCC (Combine, Compress and Cache) is disabled in BackOffice / Advanced Parameters / Performance / CCC (Combine, Compress and Cache).

Igor Dragun
Partner With Us Let's discuss how to grow your business. Get a Free Quote.
Talk to Igor

2 output

The dev mode is enabled as follows:
1. Go to the directories [rооt_prestаshоp] /config/. [root_prestashop] – Prestshop root directories;
2. Open the file;
3. In the file find the line define( ‘_PS_MODE_DEV_’, false);  
4. Replace the line define( ‘_PS_MODE_DEV_’, false) with define( ‘_PS_MODE_DEV_’, true) and save the changes.


PrestaShop Development

Take your online store to the next level with BelVG PrestaShop Development

Visit the page
Igor Dragun
Partner With Us Looking for a partner to grow your business? We are the right company to bring your webstore to success. Talk to Igor


  1. thanks for the tips. it really helped.

    just one problem, images are showing from megento admin panel, not prestashop.

Post a new comment

BelVG Newsletter
Subscribe to our mailing list and get interesting stuff and updates to your email inbox.
Email *