Disk Utility - Error: Couldn’t create temporary directory.

DISK UTILITY

Verify Disk / Repair Disk

Verifying partition map for “APPLE SSD SM0512F Media”

Checking prerequisites

Checking the partition list

Checking for an EFI system partition

Checking the EFI system partition’s size

Checking the EFI system partition’s file system

Checking the EFI system partition’s folder content

Problems were found with the partition map which might prevent booting

Error: Couldn’t create temporary directory.