“Destination folder is not writable or does not exists”

Ok here is the solution :

Setup permissions to 777 for:   权限设置为777：

1. “MEDIA” folder   NEDIA目录

2. in MEDIA folder to “CATALOG” and “ TMP” and ALL subfolders individually.    Media文件夹“目录”和“TMP”和所有子文件夹  chmod -R 777  

报错问题即可解决