Originally Posted by Chuck S
That error usually suggests one of two things.
1. Check your GD2 version in PHPINFO in Admin and see that the image you are trying to upload is supported. It could also be the image was renamed but is some other image type. You can try deleting the image and processing another one.
2. Check that your data and uploads directories are 777 at every level.
i uploads photo old category.
but i create a new category and upload photo error mesage "(): Sorry, this image type is not supported yet. "