virtual machine inaccessible

[remibemol]

I had installed ubuntu natty on a machine

I didn't changed anything, as far I remember. Now I got a message for that that the machine is inaccessible. It's not possible to edit the configuration, then I can't correct anything. In the Virtual media manager, everthing look ok, no error message.

I got this message:

The selected virtual machine is inaccessible. Please inspect error message shown below and press Refresh button if you want to repeat the accessibility check:

Could not find an open hard disk with UUID {3728e3b5-7f16-49dc-b1c1-b141c29125f5}.
Result Code: 
VBOX_E_OBJECT_NOT_FOUND (0x80BB0001)
Component: 
VirtualBox
Interface: 
IVirtualBox {d2de270c-1d4b-4c9e-843f-bbb9b47269ff}

in the Virtual media manager there is nothing with this number (d2de270c-...)

I had several snapshots...

I attach a screenshot and the xml file...

[remibemol]

vbox file with no reference to the number show in the error.

[remibemol]

screenshot

[remibemol]

I didn't attached xml file it's appear to be a vbox file now...

inside the is no reference to d2de270c... neither

[Frank Mehnert]

Please could you attach the VirtualBox.xml file from ~/.VirtualBox?

[remibemol]

as requested

[Frank Mehnert]

You are suffering from #8024. Please wait for the next maintenance release (out soon) and then follow the instruction in ​comment 3.

[Frank Mehnert]

Should be fixed in 4.0.2.