The PHP temporary directory is not writeable

Hi there, I have been reading many of your install issues which have helped but I am now getting

The PHP temporary directory is not writeable

from what I have read I had to make the tmp/ directory writeable this is now set at 0777 (writeable) but I am still seeing this message can anyone help please

Many thanks sarah x

Hi.

I think this error is not related to Joomdle, but Joomla config instead. Can you install any other extension in that site?