delete twice has bad error

[SvenDowideit]

svend_000@T440S ~/.boot2docker
$ ./boot2docker-cli.exe delete
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

svend_000@T440S ~/.boot2docker
$ ./boot2docker-cli.exe delete
2014/03/11 14:33:38 VM "boot2docker-vm" is not registered.
VBoxManage.exe: error: Could not find a registered machine named 'boot2docker-vm'
VBoxManage.exe: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBox, interface IVi
rtualBox, callee IUnknown
VBoxManage.exe: error: Context: "FindMachine(Bstr(VMName).raw(), machine.asOutParam())" at line 154 of file VB
oxManageMisc.cpp
2014/03/11 14:33:38 Failed to delete VM "boot2docker-vm": exit status 1