[Plugin: NextGEN Gallery] Upgrade – thumbnails not being created

I’m having problems as well, but mine is with a custom theme.

Everything was working fine, but now it’s stopped working. The thumbnails are failing to generate despite it saying “done”.

I’m using wordpress 3.0.0 and develop all my sites in wordpress.

Looking forward to a quick update ??

I’m having a similar problem – just installed and uploaded 15 images, only one created a thumbnail and when I try and edit them, it get this error message below.
I’m using the latest version of wordpress with a thesis theme.

the image that created the thumbnail is 1972 x 1100 pixels, the others are larger (some 5000 pixels).

help?

Joe

Warning: Division by zero in /var/www/vhosts/joelafferty.com/httpdocs/blog/wp-content/plugins/nextgen-gallery/lib/gd.thumbnail.inc.php on line 282

Warning: Division by zero in /var/www/vhosts/joelafferty.com/httpdocs/blog/wp-content/plugins/nextgen-gallery/lib/gd.thumbnail.inc.php on line 295

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /var/www/vhosts/joelafferty.com/httpdocs/blog/wp-content/plugins/nextgen-gallery/lib/gd.thumbnail.inc.php on line 428

Warning: Division by zero in /var/www/vhosts/joelafferty.com/httpdocs/blog/wp-content/plugins/nextgen-gallery/admin/edit-thumbnail.php on line 42

I’ve managed to resolve my problems, unfortunately i have had to edit the plugin code though:

here’s how:
1. Open an FTP connection to your root WordPress directory
2. Open /wp-content/plugins/nextgen-gallery/lib/gd.thumbnail.inc.php with your favourite text editor (e.g. UltraEdit, etc.)
3. On line (approx) #168 un-comment (remove the //) from before @ini_set(‘memory_limit’, ‘128M’);
4. Save and upload changes
5. Delete image/s that failed to generate a thumbnail and re-upload using NextGEN Gallery’s standard Upload Images feature

(credit to: https://www.visser.com.au/blog/thumbnail-generation-php-memory-limit-nextgen-gallery/)

This worked for me, but is not an ideal solution.

Hope it helps.

Hi Justin,
thanks for the tip – I tried it, but only succeeded with a few images, not them all.
however, I got from this the issue being the size of my images.
I resized all to 1200 pixels and yes!! it worked.
does for me for now!
Joe