"Given key not present in the dictionary"

Discussion created by DP5150 on Oct 28, 2013
Latest reply on Oct 30, 2013 by mminami-esristaff
"Given key not present in the dictionary", received this error when trying to attach an image file (jpg) to one of my feature services
I've uploaded. (Service was a direct file upload from my computer.)
Anyone know what the problem may be and where to go to fix this? I've been able to attach files before with my other services.