Clipped doesn't seem to be generating thumbnails on upload

[DaveahamLincoln]

When I upload a picture and insert using the insert button on the asset thumbnail (which is blank for some reason), it generates the tag

<r:asset:image size="normal" id="1" />

as expected. However, when I go to the page, I get an error:

AssetTags::TagError in Admin/pagesController#preview
asset Professor A has no 'normal' thumbnail

Full trace here: http://pastebin.com/rd8B00Fv

I've already tried installing the ImageMagick dev libraries and putting

Paperclip.options[:command_path => '/usr/bin/mogrify' ]

in my radiant_config.rb and my clipped_config.rb (alternately, not concurrently), since I use Passenger, but the issue persists. Any ideas?

Thanks,

-Dave Nearing

[saturnflyer]

Hmm. That stack trace doesn't reveal much.

What sizes of images are being created? Can you look in your file system (wherever that is) and see what files you have?

[DaveahamLincoln]

I've got the two images uploaded and sized to 256x256, located at

/public/system/assets/1/original/professor1.png 

and

/public/system/assets/2/original/professor2.png 

It doesn't seem to be generating any other sizes at all for some reason.

[saturnflyer]

That's what I figured.

This means that there's something wrong on your system and that we should fail more gracefully in that event. I don't have time at the moment to look, but I'll try to track down the error.

In the meantime, can you try to check things in a console.
What values do you have for Asset.thumbnail_sizes?
Maybe that can help us track it down.

[DaveahamLincoln]

Rails console

>> Asset.thumbnail_sizes
=> {}

Checking Asset.all returns a list containing the assets I've uploaded. Should I maybe try adding some thumbnail sizes to Asset.thumbnail_sizes and see if that works?