Exploring the same issue now but have not identified the problem yet. Try switching to the default theme to get thumbnails created and edit thumbs temporarily. I’m not sure why the theme would affect this functionality but hoping to track it down soon or maybe someone out there can shed some light.
Glad I found this post – the thumbnail generation issue has been driving me crazy!
For me, I upload a zip, then I get multiple errors of:
“
A failure occurred
[more]
1
“
The thumbnails ARE created, but, as SteveT_AU mentioned, the thumbnail crops cannot be edited (for me the thumbnail shows on the right hand pane of the editor, but the full image does not appear on the left hand side of the editor).
After reading adamholz’s fix, I tried reverting to the default theme – and now thumbnail generation works fine!
I’d also be very keen to hear from someone who knows why this is!!
Ok.. it looks like a custom nav function in my theme’s copy of functions.php was somehow causing the issue – have removed that code and the theme works fine now.
This function isn’t required any more so I can remove it, but it does make me feel a little anxious about customising other aspects of this site / other sites in the future.
I’ll do a full reinstall to confirm that this is the only change reqd.
Hi dotherightthing… Can you give some info on the functions.php custom nav function that you found to be related to this problem? Thanks!
Hi adamholz, not sure if I will be able to post the code here but I will give it a try. Excuse the code mess, it was my first attempt at adding a custom widget…
<?php
function dtrtrm1_custom_nav()
{
?>
<div id="nav">
<ul>
<li><?php if(is_home()) { echo '<strong>'; } ?><a href="<?php bloginfo('url'); ?>" title="Home">Home</a><?php if(is_home()) { echo '</strong>'; } ?></li>
<?php wp_list_pages('title_li=&depth=1&sort_column=menu_order'); ?>
</ul>
<div class="clear"></div>
</div>
<?php
}
add_filter( 'op_page_nav', 'dtrt_rm1_custom_nav' );
?>
<?php
function dtrtrm1_custom_nav_portfolios()
{
?>
<div id="nav">
<ul>
<li><?php if(is_home()) { echo '<strong>'; } ?><a href="<?php bloginfo('url'); ?>" title="Home">Home</a><?php if(is_home()) { echo '</strong>'; } ?></li>
<?php wp_list_pages('title_li=&depth=2&sort_column=menu_order'); ?>
</ul>
<div class="clear"></div>
</div>
<?php
}
add_filter( 'op_page_nav', 'dtrt_rm1_custom_nav' );
?>
Cheers
d
I’m having the same problem. Thumbs aren’t created when uploading pics, and I get the “A failure occurred” message when I try to create new ones. However, for me the thumbs aren’t created at all.
I even tried it after switching to the default theme, but no luck. And I don’t have a custom nav function, which seemed to be the problem for Dotherightthing.
Anyone have a suggestion?
For me, this problem was overcome simply by using ImageMagick instead of GD. May not be the same exact issue you’re experiencing, but it’s worth a shot if IM is available.
ImageMagick produced a number of new errors for me.
I removed everything from my functions.php file and still got the same issue. It seems that as long as the functions.php file exists, the “edit thumb” screen does not show the image and allow cropping. More info here:
http://wordpress.org/support/topic/294800
