Clone of ESXi VM for testing (Datastore Conflict Issue)

• For testing purpose , when I cloned a ESXi VM and adding it to the vCenter I get this error.

• After a lot of work and search for resignaturing the datastore that did'nt worked.
• Then simply I connected to ESXi host and deleted the local datastore.
• Added it back by adding a storage and discovering the same local datastore (vmdk). 
• Created a new datastore and added the same ESXi host to vCenter and there you go. Cloned ESXi host VM is ready to be used.