Thread:Project:Support desk/error creating thumbnail - uninformative error message

Hi all,

I am seeing "Error creating thumbnail:" errors whenever people try to upload images (JPGs, mostly) to our wiki. However, unlike most other reports of this kind, the error message doesn't include anything after the colon. That is, it doesn't say "Permission denied" or "No such file as /usr/bin/convert" or "unrecognised option -thumbnail" (just some examples I saw when searching previous support questions) or anything like that, that would actually help me diagnose and fix the problem. It is just completely blank in the second half where it should give me more information.

Has anyone seen this before, or have any tips on how I could get it to be more verbose?