Symptoms

There are no visible problems for users. The following spurious errors appear in the atlassian-confluence.log:

2009-08-05 05:57:53,778 ERROR [TP-Processor125\] [confluence.pages.thumbnail.DefaultThumbnailManager\] getThumbnailsFolder Containing folders <path_to_thumbnails_folder> for the attachment <attachment_name> could not be created

The thumbnail folders referenced in the error messages do exist on the server and contain thumbnails, as expected.

Cause and Resolution

Note that this error is only problematic in that it's filling up the logs. For an explanation and to track the resolution, see Spurious Log Errors 'getThumbnailsFolder Containing folders for the attachment could not be created'.