VMware Cloud Director 10.6
This issue can occur if a disk size is specified as ovf:size="0" in the OVF descriptor file being uploaded.
To resolve this issue, ensure the ovf:size parameter in the <References> section of the OVF descriptor file matches the actual size of the VMDK file(s) in bytes, for example:
<ovf:File ovf:href="disk1.vmdk" ovf:id="disk1" ovf:size="####"></ovf:File>
To check the actual file size, execute the dir command.
Below is an output example for a virtual disk test.vmdk (682510336 bytes)
C:\###>dir /-C test.vmdk
mm/dd/yyyy hh:mm 682510336 test.vmdk