Uploaded file was empty We've got all the max settings set up OK as per https://craftcms.com/support/upload-troubleshooting, but we are still getting errors. The log file just shows this, nothing more:


  2014/10/24 11:26:35 [error] [application] Uploaded file was empty


What else should we be looking for?
I had the same problem and all PHP settings were set OK. I couldn't upload a 2MB file, but uploading a 20KB file was fine. 

The problem was that the /tmp folder was almost completely full (because PHP stores the temporary file in /tmp before moving it to web/user space i.e. your assets folder). Freeing up space in this folder solved the issue.