Incompatibility between gparted and testdisk.

[Luis Suzuki]

I restored some "lost" partitions with testdisk (the partitions were created with gparted) ,testdisk worked fine and the partitions are now usable.The problem is that gparted no more recognizes those partitions and only sees the whole volume,a USB external HDD.So,how can I restore the compatibility with gparted,and gparted recognizes them again,without erasing anything,or without formatting the HDD.The problem is now I cannot operate on any of the partitions with gparted.