Regenerate images (products) - gives 404 error why?

[EXCORP]

OK so I'm not a programmer, but I am having issues big time with regenerating thumbnails for products.

Here is what I have been worling on.. I'm migrating products from my opencart to prestashop. I used litextension to do so.

Everything seemed to migrate fine.. next they wanted me to regenerate thumbnails for the images to appear. ok so I CANT because I get a 500 error every single time.

I do not do "all" products. I select products -- then went down each of the list. It gives me the error no matter what I do. NOW, all the new product images I added are not there. So it half ....ed it!  What causes this and how can I fix this??

A progect that should have taken me a few days has turned in to 2 weeks. I'm beyond frustrated in trying to figure this out..

 

Any one know a fix for this?????

 

My images are all blocked ?'s. Some where there, but gone. and cant complete regenerating anything due to the 404.

 

I need this thing done asap, and I'm at witts end.

 

Sorry is ERROR 500 - INTERNAL SERVER ERROR (not 404)

Edited September 28, 2015 by EXCORP (see edit history)

[mattheoh]

I had the same problem as you (prestashop 1.6.1.5)

It was à Proxy Timeout problem in my case. (Apache Conf)

 

To solve it , edit : /etc/httpd/conf/extra/httpd-includes.conf

and add : ProxyTimeout 1800

Then restart Apache.

 

And it works !

 

Solution found here : https://forum.directadmin.com/showthread.php?t=50172&p=260294#post260294

Edited April 21, 2016 by mattheoh (see edit history)

[zod]

There are 2 ways to solve the problem without access to the hosting configuration.

1) Repeat the regeneration after the 500 internal server error, more and more times, but untick the "delete previous images" option. Do it until you see the process is completed. It is a sort of brute forcing.

2) Use a module that fix the problem, also it has buttons to pause and resume the process (it worked for me so it is my choice), the prject is in GitHub: https://github.com/meetjey/imageRegeneratorPrestashop